So I am blind in one eye, and I really have no idea what it looks like to some I hear it's a gimmick, from others I heart it's amazing. So I mean i know objects take up space in three dimensions, but I'm really not sure what exactly the 3D effect does, and I'm sure it would be an awesome spectacle to see. So what does it do exactly, and is there any way to simulate the effect for people who only have one eye, because you need two eyes to see to see 3D. I remember my first experience of 3D, we were on vacation I was seven, and we saw a 4-D movie, you know it was 3D and had other effects such as mist, the chairs moved, and so it had a kind of had a feedback element. I never could see what everyone was wowing about, but the chairs moving, and the mist entertained me enough that I could ride it more than once. So where am I going with this, what exactly does the 3D effect do, and is are their possible alternatives for people who can only see out of one eye. I was born premature if anyone wanted to know why I can only see out of one eye.
So I am blind in one eye, and I really have no idea what it looks like to some I hear it's a gimmick, from others I heart it's amazing. So I mean i know objects take up space in three dimensions, but I'm really not sure what exactly the 3D effect does, and I'm sure it would be an awesome spectacle to see. So what does it do exactly, and is there any way to simulate the effect for people who only have one eye, because you need two eyes to see to see 3D. I remember my first experience of 3D, we were on vacation I was seven, and we saw a 4-D movie, you know it was 3D and had other effects such as mist, the chairs moved, and so it had a kind of had a feedback element. I never could see what everyone was wowing about, but the chairs moving, and the mist entertained me enough that I could ride it more than once. So where am I going with this, what exactly does the 3D effect do, and is are their possible alternatives for people who can only see out of one eye. I was born premature if anyone wanted to know why I can only see out of one eye.
Firstly, just to describe what the 'stereoscopic 3D effect' like Nvidia 3D is. It basically tricks the human 'stereo' vision into seeing depth where it does not exist. So a 3D movie to someone with two eyes appears as though there are actual 3D objects deep within the screen (and sometimes in front of the screen), rather than the screen and everything on it appearing to be flat.
Anyone with at least one eye can see depth in real life however; simply by moving your head in any direction, your brain can perceive depth because it can see things from a slightly different angle. Having two eyes allows for far more precision, but it's not necessary.
So how can people with one eye perceive [b][i]faked[/i][/b] 3D? Simple, you just have to present an image to the person viewing, based on where their head is in relation to the display. Watch this video, and you'll see a fantastic example of this:
http://www.youtube.com/watch?v=Jd3-eiid-Uw
Obviously you'd only experience the actual effect if you were in the room, with the head tracking gear on, but you can see it works. No 3D glasses, no 120Hz screen.
There are problems though. It can only be done by very rapidly tracking slight changes to the position and angle of your head, and then rendering an image based on that. It would also require either head tracking gear, or precise face tracking software for a video camera, and only one person can witness the effect at once. All this means that 3D movies are totally out of the question also, because movies are pre-rendered. Sadly for people with single eye vision, this 3D technique doesn't look like taking off in the near future. You'll probably need to wait until holographic 3D takes off, maybe in 10-15 years.
Firstly, just to describe what the 'stereoscopic 3D effect' like Nvidia 3D is. It basically tricks the human 'stereo' vision into seeing depth where it does not exist. So a 3D movie to someone with two eyes appears as though there are actual 3D objects deep within the screen (and sometimes in front of the screen), rather than the screen and everything on it appearing to be flat.
Anyone with at least one eye can see depth in real life however; simply by moving your head in any direction, your brain can perceive depth because it can see things from a slightly different angle. Having two eyes allows for far more precision, but it's not necessary.
So how can people with one eye perceive faked 3D? Simple, you just have to present an image to the person viewing, based on where their head is in relation to the display. Watch this video, and you'll see a fantastic example of this:
Obviously you'd only experience the actual effect if you were in the room, with the head tracking gear on, but you can see it works. No 3D glasses, no 120Hz screen.
There are problems though. It can only be done by very rapidly tracking slight changes to the position and angle of your head, and then rendering an image based on that. It would also require either head tracking gear, or precise face tracking software for a video camera, and only one person can witness the effect at once. All this means that 3D movies are totally out of the question also, because movies are pre-rendered. Sadly for people with single eye vision, this 3D technique doesn't look like taking off in the near future. You'll probably need to wait until holographic 3D takes off, maybe in 10-15 years.
My Laptop:
Toshiba Satellite A665 - 15.6" 120Hz 3D LCD - Intel Core i7 740QM (1.73GHz x 4)
4GB 1066MHz DDR3 RAM - Nvidia 3D Vision - Nvidia 350M 1GB - 3D Blu-Ray RW - 500GB HDD
Yea, unfortunately you will not be able to see any 3D effects with viewing through only one eye. /confused.gif' class='bbc_emoticon' alt=':confused:' /> In fact even with both eyes some small percentage of people can't see the 3D effect.
Yea, unfortunately you will not be able to see any 3D effects with viewing through only one eye. /confused.gif' class='bbc_emoticon' alt=':confused:' /> In fact even with both eyes some small percentage of people can't see the 3D effect.
[i]"Anyone with at least one eye can see depth in real life however; simply by moving your head in any direction, your brain can perceive depth because it can see things from a slightly different angle. Having two eyes allows for far more precision, but it's not necessary."[/i]
Nah.. One eye view is completely different in brain and it doesn't matter you change your view angle.. Brain doesn't calculate 3d distance and gives a depth sense according to it's previous memory of view... It's like calculating a triangle's height.. It needs both side length and angles at the same time to calcualte it right..
"Anyone with at least one eye can see depth in real life however; simply by moving your head in any direction, your brain can perceive depth because it can see things from a slightly different angle. Having two eyes allows for far more precision, but it's not necessary."
Nah.. One eye view is completely different in brain and it doesn't matter you change your view angle.. Brain doesn't calculate 3d distance and gives a depth sense according to it's previous memory of view... It's like calculating a triangle's height.. It needs both side length and angles at the same time to calcualte it right..
[quote name='zozzy' date='29 December 2010 - 09:40 AM' timestamp='1293615654' post='1167764']
[i]"Anyone with at least one eye can see depth in real life however; simply by moving your head in any direction, your brain can perceive depth because it can see things from a slightly different angle. Having two eyes allows for far more precision, but it's not necessary."[/i]
Nah.. One eye view is completely different in brain and it doesn't matter you change your view angle.. Brain doesn't calculate 3d distance and gives a depth sense according to it's previous memory of view... It's like calculating a triangle's height.. It needs both side length and angles at the same time to calcualte it right..
[/quote]
But it still gives a 3D effect, otherwise people with one eye would genuinely perceive a TV to contain depth. If you place an object in front of you and move your head, your brain can see a changing image, and thus correctly interprets this as being an actual 3D object in the room in front of you. Move your head in front of a TV, and the image does not change, thus the brain knows it is 2D. This happens regardless of whether you have one or two eyes. Having two eyes greatly enhances our ability to see depth, especially when we are stationary, but it's not totally necessary.
[quote name='zozzy' date='29 December 2010 - 09:40 AM' timestamp='1293615654' post='1167764']
"Anyone with at least one eye can see depth in real life however; simply by moving your head in any direction, your brain can perceive depth because it can see things from a slightly different angle. Having two eyes allows for far more precision, but it's not necessary."
Nah.. One eye view is completely different in brain and it doesn't matter you change your view angle.. Brain doesn't calculate 3d distance and gives a depth sense according to it's previous memory of view... It's like calculating a triangle's height.. It needs both side length and angles at the same time to calcualte it right..
But it still gives a 3D effect, otherwise people with one eye would genuinely perceive a TV to contain depth. If you place an object in front of you and move your head, your brain can see a changing image, and thus correctly interprets this as being an actual 3D object in the room in front of you. Move your head in front of a TV, and the image does not change, thus the brain knows it is 2D. This happens regardless of whether you have one or two eyes. Having two eyes greatly enhances our ability to see depth, especially when we are stationary, but it's not totally necessary.
My Laptop:
Toshiba Satellite A665 - 15.6" 120Hz 3D LCD - Intel Core i7 740QM (1.73GHz x 4)
4GB 1066MHz DDR3 RAM - Nvidia 3D Vision - Nvidia 350M 1GB - 3D Blu-Ray RW - 500GB HDD
Well to be honest, seeing in 3D is not all that different than seeing in 2D. For example, if I close one of my eyes the visual experience is largely the same. What is missing with only one eye is a sense of volume in space. I don't want to say that there is no "depth perception" because that is not accurate. Your brain uses numerous cues to perceive depth, only one is stereopsis. There is perspective (ie the lines on the street converge, implying depth), comparison to known sizes (such as a person in the distance, or a car growing bigger as it comes at you), it can use the motion parallax effect if you or the object is moving (such as looking out the window of a car, you will see trees move by faster the closer they are to you), color differences at larger distances (ie fog), occlusion (for example if one person is in front of another person, clearly they are closer to you), etc. So your brain is still able to construct a 3-dimensional spatial awareness in the absence of stereo vision. However you, yourself, will probably not be able to experience the volume of this space without 2 functional eyes and the proper pathways in the brain. You see, even people that have sight in both eyes can still lack stereo-vision. Some estimates say that somewhere in the range of 5-10% of people can't see 3D or have some issue with stereo-vision. So this is not an uncommon problem. And these people are still able to function in society, seeing in 3D is no-where near as essential as seeing at all, or hearing properly, etc. Unless you aspire to be a professional athlete, you can probably go about your life without it and still do many of the same things. Surely it makes many things more convenient, and the visual experience is certainly richer, but it is minor in the grand scheme of things.
To answer your question, though, of what 3D is: it is really hard to describe to someone who hasn't seen it. Imagine trying to explain what the color green looks like to someone who is color-blind. Or describing Mozart to the deaf. Or describing an orgasm to a virgin. No matter how well you explain it, there is always a disconnect where you just have to experience it for yourself. That said, I will do my best to try. 3D vision (or stereopsis) is the experience of visual depth. This is literally another dimension in which to perceive space (with only 1 eye you would be seeing in 2D). What this extra information adds is this sort of fullness and tangibility to objects in your visual field. For example, if I were to place my hand in front on my face (about midway between my monitor) I get the impression that my hand is a distinct object from the monitor. Of course, I know this to be true. However seeing it in 3D, I can feel a volume of empty space around my hand. If I close one eye, then my hand simply blends into the screen. There is not a visual distinction between them in space (aside from known cues that I discussed earlier). Also, if I were to move my hand even closer to my face, it would become uncomfortable because the 2 eyes could not focus on such a close object and still have the rest of the periphery clearly visible. So I would get this blurry double-image effect that hurts my eyes. This does not happen with one eye closed. This type of problem (difficulty to focus with double-images) sometimes happens with badly authored 3D content, like some early 3D movies (or 3D games with incorrect settings). Which is also one of the reasons people think 3D gives you headaches (although not one of the main ones).
Its important to understand what I mean by a sense of "volume". This refers to the fact that an object is a physical entity occupying space in the real world. For example, you could look at a photograph and it is clearly just a flat piece of paper. If you were to be at the location the photograph was taken, then you would feel you were in a real space (even with one eye closed). You could walk around and see different perspectives of the scene, you can experience it in 3 dimensions. Here is a better example. Pick something up that is on your desk. Yes, actually do this now. You can pick up your mouse, a pair of glasses, your keys. Something small. If you are fully sighted please close one eye to do this. First just hold the object and look at it. Well it seems real, you are holding it and you can see it (in 2D). Now begin touching it with both hands. Turn the object around and touch it from every angle and position. Feel the volume of the object as it is physically tangible in space. This actually creates a 3 dimensional construct in your mind. A spatial awareness that is independent of sight. Here is another test of 3D spatial awareness. Move back from your computer a bit so you have some room to move your arms around. Now close your eyes. With your two hands stick your index finger out (like you are pointing at something) and close the rest of your fingers. Now move your left hand to some random point is space (remember, your eyes are closed). Now with your right hand, move it so your index fingers touch. Now move your right finger to some random point and try finding it with your left finger. Notice how you can do this without looking? This is because the mind has a 3 dimensional construct of the body (and to a lesser extent, the surrounding environment) that is independent of sight. So even if you can only see in 2D, or you are completely blind, there is still a spatial awareness that infers the depth of reality, without needing to visually experience 3D. Now this doesn't explain really what 3D looks like, but it does somewhat relate to how 3D feels (since you are using your sense of touch, but the underlying information is the same; ie the shape and volume of an object).
As much as 3D is about the volume of physical objects, it is also about the perception of empty space (which is maybe more important to depth perception). With only one eye open, to me everything looks very flat. As objects appear to be visual (and physically) on top of each other. Since empty space is not visible (except in the case of fog, etc.) there is not a visual distinction between overlapping objects. For example, right now in 2D my hands, the keyboard, the monitor, the wall behind it, they all seem to exist on the same plane. Such as looking at a photograph or a picture on TV. Of course there is an implied distinction, ie the knowledge that my hands are not part of the keyboard. However, visually that are part of the same thing. There is no experience of the empty space. With 3D vision, however, you can almost see the emptiness. The same way how when you feel an object in your hand, you can experience its volume, that it is tangible. Well with 3D vision you can "sense" the intangible. It is not the same as sight, since you are not seeing anything (you cannot see nothingness). And you are not exactly feeling it either. But it is a sense, nonetheless. It is this sense of nothing that actually gives objects their depth and differentiates them from the background of the scene (such as your wall, the sky, etc.). The way this happens is that when you see with two eyes, you are seeing two different angles of the same scene. Due to the way objects shift in space between each eye, the mind is able to generate a sort of depth-map of the scene. This is a similar experience to the spatial awareness you have of your own body (like in the finger experiment) however now it includes everything within your visual perception (up to a certain distance, maybe 30 meters). This experience actually makes the world seem more vast, like you have breathing room. In 2D the experience is more constricting and cluttered, like everything is on top of you. So the experience of 3D is somewhat liberating in a sense. For example, like the feeling you get when you just get off of a crowded bus or airplane. Or the feeling you have when at the beach, or in a wide open grass field (as apposed to inside a car or your room). The important aspect is that there is a sense of the empty space. However, if you were born sighted only in one eye, it is possible your mind has adapted to make your perception different than mine. So since I am used to seeing in 3D, my mind may rely on this sense to create the world around me (of rather my mind's perception of the real world). If you developed with only one eye, then maybe you too have a sense of empty space even if you cannot see it visually (similar to how you can touch your fingers with your eyes closed).
There is actually some merit to this. Case in point, there is a 100-year-old invention called the Synopter which claims to make a user experience depth of a 2D image ( http://www.newscientist.com/article/dn19825-new-gadget-promises-3d-without-the-headaches.html ). Basically its a device, lets think of it as a pair of binoculars. There are two lens for your eyes, but only one lens that sees the world. Inside the device are a construction of mirrors and lenses, such that each of your eyes sees the same exact thing. What they found was that people were still able to experience depth, even though binocular disparity had been removed (meaning both eyes saw the same thing). Now this was with fully sighted people, that already knew what stereopsis felt like. But it demonstrates how the mind is able to adapt to the absence of external stimuli. There have also been experiments where people where forced to wear glasses that turned everything upside down. After about a week of wearing the glasses, something with "flip" in their mind and they would now see normally. There is another more recent experiment where completely blind people are given a device so they can "see" with their tongue. Basically they wear glasses with a camera on it, and then a device sits on their tongue which converts the visual image into electrical impulses (like licking a 9 volt battery). There is similar work being done where completely blind people can gain stereoscopic 3D awareness through sound ( http://www.seeingwithsound.com/binocular.htm ). Another more practical effect like this can be seen with wiggle stereoscopy. This is when 2 images (say a left and right eye view) are toggled between each other rapidly (usually in an animated gif). This can give the impression of a 3D image, even on a 2D screen or with one eye closed. Here is a good example:
[img]http://www.burningmanopera.org/2002/Uta_bar.gif[/img]
You can see more images from this set here: http://www.burningmanopera.org/2002/2002_stereo_wiggle2.html
Notice how there is now this sense of space that you do not get with a regular image. For example, the vodka bottle is clearly in front of the girl and feels like a distinct object. You also get an impression of the surroundings. Like look at the white fabric above her head. Notice how you can tell it is above her and not behind her (like the red and orange sheets)? This is because there is an implication of depth and a separation of objects in space (depending on their relative depths, they will shift differently between views). This gives the impression of volume (like with the vodka bottle) but also empty space, a sort of atmosphere (ie that the girl is in some sort of tent). This is basically what 3D vision adds to the visual experience. Obviously this illusion is not exactly the same as the true experience of stereoscopic vision. However, it is probably the best example of 3D that can be viewed strictly in 2D.
Here is another example:
[img]http://i91.photobucket.com/albums/k283/been240/uldeadoldpaintingframerate.gif[/img]
This one is cool:
[img]http://www.mediavr.com/3d/wp-content/uploads/2009/02/acrobat1.gif[/img]
This one has like 9 views, so more accuracy:
http://www.mediavr.com/fountain.htm
This is also cool:
http://www.mediavr.com/3d/
Here is a video that uses this same effect (it is not the best example of 3D, but it is the only video I know of):
http://www.youtube.com/watch?v=RPT7xbhqodo
Hopefully these examples will give you some sense of what it is like to experience 3D Vision. Of course, they can only take you so far, but I hope you will have a better understanding of the subject after reading this post. If anything I talked about is not clear, or you have any questions, please feel free to ask.
Well to be honest, seeing in 3D is not all that different than seeing in 2D. For example, if I close one of my eyes the visual experience is largely the same. What is missing with only one eye is a sense of volume in space. I don't want to say that there is no "depth perception" because that is not accurate. Your brain uses numerous cues to perceive depth, only one is stereopsis. There is perspective (ie the lines on the street converge, implying depth), comparison to known sizes (such as a person in the distance, or a car growing bigger as it comes at you), it can use the motion parallax effect if you or the object is moving (such as looking out the window of a car, you will see trees move by faster the closer they are to you), color differences at larger distances (ie fog), occlusion (for example if one person is in front of another person, clearly they are closer to you), etc. So your brain is still able to construct a 3-dimensional spatial awareness in the absence of stereo vision. However you, yourself, will probably not be able to experience the volume of this space without 2 functional eyes and the proper pathways in the brain. You see, even people that have sight in both eyes can still lack stereo-vision. Some estimates say that somewhere in the range of 5-10% of people can't see 3D or have some issue with stereo-vision. So this is not an uncommon problem. And these people are still able to function in society, seeing in 3D is no-where near as essential as seeing at all, or hearing properly, etc. Unless you aspire to be a professional athlete, you can probably go about your life without it and still do many of the same things. Surely it makes many things more convenient, and the visual experience is certainly richer, but it is minor in the grand scheme of things.
To answer your question, though, of what 3D is: it is really hard to describe to someone who hasn't seen it. Imagine trying to explain what the color green looks like to someone who is color-blind. Or describing Mozart to the deaf. Or describing an orgasm to a virgin. No matter how well you explain it, there is always a disconnect where you just have to experience it for yourself. That said, I will do my best to try. 3D vision (or stereopsis) is the experience of visual depth. This is literally another dimension in which to perceive space (with only 1 eye you would be seeing in 2D). What this extra information adds is this sort of fullness and tangibility to objects in your visual field. For example, if I were to place my hand in front on my face (about midway between my monitor) I get the impression that my hand is a distinct object from the monitor. Of course, I know this to be true. However seeing it in 3D, I can feel a volume of empty space around my hand. If I close one eye, then my hand simply blends into the screen. There is not a visual distinction between them in space (aside from known cues that I discussed earlier). Also, if I were to move my hand even closer to my face, it would become uncomfortable because the 2 eyes could not focus on such a close object and still have the rest of the periphery clearly visible. So I would get this blurry double-image effect that hurts my eyes. This does not happen with one eye closed. This type of problem (difficulty to focus with double-images) sometimes happens with badly authored 3D content, like some early 3D movies (or 3D games with incorrect settings). Which is also one of the reasons people think 3D gives you headaches (although not one of the main ones).
Its important to understand what I mean by a sense of "volume". This refers to the fact that an object is a physical entity occupying space in the real world. For example, you could look at a photograph and it is clearly just a flat piece of paper. If you were to be at the location the photograph was taken, then you would feel you were in a real space (even with one eye closed). You could walk around and see different perspectives of the scene, you can experience it in 3 dimensions. Here is a better example. Pick something up that is on your desk. Yes, actually do this now. You can pick up your mouse, a pair of glasses, your keys. Something small. If you are fully sighted please close one eye to do this. First just hold the object and look at it. Well it seems real, you are holding it and you can see it (in 2D). Now begin touching it with both hands. Turn the object around and touch it from every angle and position. Feel the volume of the object as it is physically tangible in space. This actually creates a 3 dimensional construct in your mind. A spatial awareness that is independent of sight. Here is another test of 3D spatial awareness. Move back from your computer a bit so you have some room to move your arms around. Now close your eyes. With your two hands stick your index finger out (like you are pointing at something) and close the rest of your fingers. Now move your left hand to some random point is space (remember, your eyes are closed). Now with your right hand, move it so your index fingers touch. Now move your right finger to some random point and try finding it with your left finger. Notice how you can do this without looking? This is because the mind has a 3 dimensional construct of the body (and to a lesser extent, the surrounding environment) that is independent of sight. So even if you can only see in 2D, or you are completely blind, there is still a spatial awareness that infers the depth of reality, without needing to visually experience 3D. Now this doesn't explain really what 3D looks like, but it does somewhat relate to how 3D feels (since you are using your sense of touch, but the underlying information is the same; ie the shape and volume of an object).
As much as 3D is about the volume of physical objects, it is also about the perception of empty space (which is maybe more important to depth perception). With only one eye open, to me everything looks very flat. As objects appear to be visual (and physically) on top of each other. Since empty space is not visible (except in the case of fog, etc.) there is not a visual distinction between overlapping objects. For example, right now in 2D my hands, the keyboard, the monitor, the wall behind it, they all seem to exist on the same plane. Such as looking at a photograph or a picture on TV. Of course there is an implied distinction, ie the knowledge that my hands are not part of the keyboard. However, visually that are part of the same thing. There is no experience of the empty space. With 3D vision, however, you can almost see the emptiness. The same way how when you feel an object in your hand, you can experience its volume, that it is tangible. Well with 3D vision you can "sense" the intangible. It is not the same as sight, since you are not seeing anything (you cannot see nothingness). And you are not exactly feeling it either. But it is a sense, nonetheless. It is this sense of nothing that actually gives objects their depth and differentiates them from the background of the scene (such as your wall, the sky, etc.). The way this happens is that when you see with two eyes, you are seeing two different angles of the same scene. Due to the way objects shift in space between each eye, the mind is able to generate a sort of depth-map of the scene. This is a similar experience to the spatial awareness you have of your own body (like in the finger experiment) however now it includes everything within your visual perception (up to a certain distance, maybe 30 meters). This experience actually makes the world seem more vast, like you have breathing room. In 2D the experience is more constricting and cluttered, like everything is on top of you. So the experience of 3D is somewhat liberating in a sense. For example, like the feeling you get when you just get off of a crowded bus or airplane. Or the feeling you have when at the beach, or in a wide open grass field (as apposed to inside a car or your room). The important aspect is that there is a sense of the empty space. However, if you were born sighted only in one eye, it is possible your mind has adapted to make your perception different than mine. So since I am used to seeing in 3D, my mind may rely on this sense to create the world around me (of rather my mind's perception of the real world). If you developed with only one eye, then maybe you too have a sense of empty space even if you cannot see it visually (similar to how you can touch your fingers with your eyes closed).
There is actually some merit to this. Case in point, there is a 100-year-old invention called the Synopter which claims to make a user experience depth of a 2D image ( http://www.newscientist.com/article/dn19825-new-gadget-promises-3d-without-the-headaches.html ). Basically its a device, lets think of it as a pair of binoculars. There are two lens for your eyes, but only one lens that sees the world. Inside the device are a construction of mirrors and lenses, such that each of your eyes sees the same exact thing. What they found was that people were still able to experience depth, even though binocular disparity had been removed (meaning both eyes saw the same thing). Now this was with fully sighted people, that already knew what stereopsis felt like. But it demonstrates how the mind is able to adapt to the absence of external stimuli. There have also been experiments where people where forced to wear glasses that turned everything upside down. After about a week of wearing the glasses, something with "flip" in their mind and they would now see normally. There is another more recent experiment where completely blind people are given a device so they can "see" with their tongue. Basically they wear glasses with a camera on it, and then a device sits on their tongue which converts the visual image into electrical impulses (like licking a 9 volt battery). There is similar work being done where completely blind people can gain stereoscopic 3D awareness through sound ( http://www.seeingwithsound.com/binocular.htm ). Another more practical effect like this can be seen with wiggle stereoscopy. This is when 2 images (say a left and right eye view) are toggled between each other rapidly (usually in an animated gif). This can give the impression of a 3D image, even on a 2D screen or with one eye closed. Here is a good example:
You can see more images from this set here: http://www.burningmanopera.org/2002/2002_stereo_wiggle2.html
Notice how there is now this sense of space that you do not get with a regular image. For example, the vodka bottle is clearly in front of the girl and feels like a distinct object. You also get an impression of the surroundings. Like look at the white fabric above her head. Notice how you can tell it is above her and not behind her (like the red and orange sheets)? This is because there is an implication of depth and a separation of objects in space (depending on their relative depths, they will shift differently between views). This gives the impression of volume (like with the vodka bottle) but also empty space, a sort of atmosphere (ie that the girl is in some sort of tent). This is basically what 3D vision adds to the visual experience. Obviously this illusion is not exactly the same as the true experience of stereoscopic vision. However, it is probably the best example of 3D that can be viewed strictly in 2D.
Here is another example:
This one is cool:
This one has like 9 views, so more accuracy:
http://www.mediavr.com/fountain.htm
This is also cool:
http://www.mediavr.com/3d/
Here is a video that uses this same effect (it is not the best example of 3D, but it is the only video I know of):
Hopefully these examples will give you some sense of what it is like to experience 3D Vision. Of course, they can only take you so far, but I hope you will have a better understanding of the subject after reading this post. If anything I talked about is not clear, or you have any questions, please feel free to ask.
[i]" I really have no idea what it looks like to some I hear it's a gimmick, from others I heart it's amazing"[/i][b][/b]
People say it's amazing because it's like an ordinary picture of a newspaper begins to animate or something.. It's just unusual thing for people to see it the way which is not they used to see it before... /blink.gif' class='bbc_emoticon' alt=':blink:' />
You can experience 3d and 2d version of hearing by blocking one of your ears in a noisy place.. Seeing in 3d is mostly the same... You can't know the distance of a sound source even can't know if it is from the left side or from the right side with only one ear....
" I really have no idea what it looks like to some I hear it's a gimmick, from others I heart it's amazing"[b][/b]
People say it's amazing because it's like an ordinary picture of a newspaper begins to animate or something.. It's just unusual thing for people to see it the way which is not they used to see it before... /blink.gif' class='bbc_emoticon' alt=':blink:' />
You can experience 3d and 2d version of hearing by blocking one of your ears in a noisy place.. Seeing in 3d is mostly the same... You can't know the distance of a sound source even can't know if it is from the left side or from the right side with only one ear....
I'm not exactly sure what you mean by everything looks flat, but I guess I would have to know what everything appears to be when it has depth. I mean I played Baseball as a kid, that didn't work out to well, Tennis was a failure, Basketball was okay. Though I actually stuck to running, which I guess doesn't have to have much depth perception I just have to out run, and out last my opponent it's more of a sport of who can last the longest. Though that would explains me being bad at sports that involved any sort of catching or throwing.
Thank You, your post was very insightful. I kind of wish I could enjoy a 3D experience, but than again such is life, I'm sure a deaf person would like to enjoy music, or a blind man the sight of the night sky. We are given handicaps by fate, and we must enjoy our limitations. I did enjoy learning, thank you.
I'm not exactly sure what you mean by everything looks flat, but I guess I would have to know what everything appears to be when it has depth. I mean I played Baseball as a kid, that didn't work out to well, Tennis was a failure, Basketball was okay. Though I actually stuck to running, which I guess doesn't have to have much depth perception I just have to out run, and out last my opponent it's more of a sport of who can last the longest. Though that would explains me being bad at sports that involved any sort of catching or throwing.
Thank You, your post was very insightful. I kind of wish I could enjoy a 3D experience, but than again such is life, I'm sure a deaf person would like to enjoy music, or a blind man the sight of the night sky. We are given handicaps by fate, and we must enjoy our limitations. I did enjoy learning, thank you.
I'm not exactly sure what you mean by everything looks flat, but I guess I would have to know what everything appears to be when it has depth. I mean I played Baseball as a kid, that didn't work out to well, Tennis was a failure, Basketball was okay. Though I actually stuck to running, which I guess doesn't have to have much depth perception I just have to out run, and out last my opponent it's more of a sport of who can last the longest. Though that would explains me being bad at sports that involved any sort of catching or throwing.
Thank You, your post was very insightful. I kind of wish I could enjoy a 3D experience, but than again such is life, I'm sure a deaf person would like to enjoy music, or a blind man the sight of the night sky. We are given handicaps by fate, and we must enjoy our limitations. I did enjoy learning, thank you.
I'm not exactly sure what you mean by everything looks flat, but I guess I would have to know what everything appears to be when it has depth. I mean I played Baseball as a kid, that didn't work out to well, Tennis was a failure, Basketball was okay. Though I actually stuck to running, which I guess doesn't have to have much depth perception I just have to out run, and out last my opponent it's more of a sport of who can last the longest. Though that would explains me being bad at sports that involved any sort of catching or throwing.
Thank You, your post was very insightful. I kind of wish I could enjoy a 3D experience, but than again such is life, I'm sure a deaf person would like to enjoy music, or a blind man the sight of the night sky. We are given handicaps by fate, and we must enjoy our limitations. I did enjoy learning, thank you.
[quote name='Zakereias' date='01 January 2011 - 05:58 AM' timestamp='1293879502' post='1169423'][i]I'm not exactly sure what you mean by everything looks flat...[/i][/quote]
Then try spending a full day, going about your normal routine, wearing an eye patch. But I would suggest trying to [i]drive[/i] in a wide-open space, away from damaging obstacles...
[quote name='Zakereias' date='01 January 2011 - 05:58 AM' timestamp='1293879502' post='1169423']I'm not exactly sure what you mean by everything looks flat...
Then try spending a full day, going about your normal routine, wearing an eye patch. But I would suggest trying to drive in a wide-open space, away from damaging obstacles...
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[quote name='zozzy' date='30 December 2010 - 09:58 AM' timestamp='1293724738' post='1168610']
[i]" I really have no idea what it looks like to some I hear it's a gimmick, from others I heart it's amazing"[/i][b][/b]
People say it's amazing because it's like an ordinary picture of a newspaper begins to animate or something.. It's just unusual thing for people to see it the way which is not they used to see it before...
[/quote]
Bologna. I have been using stereo 3d for years and it has not been just some novelty that wears off after a while. It significantly enhances my gaming experiences, and brings an incredible sense of immersion, especially is newer games that are wonderfully rendered with realistic graphics. The 3d stereo effect has improved as games have gotten better looking, as scenes contain a lot of subtle and realistic secondary effects that become much more enticing and impressive in 3d.
I find that I get more impressed with 3d stereo every time I fire up the newest 3d ready game. Black ops, for example, was a mediocre game, but in 3d stereo, the immersion was such that it was a simply incredible experience to play through.
[quote name='zozzy' date='30 December 2010 - 09:58 AM' timestamp='1293724738' post='1168610']
" I really have no idea what it looks like to some I hear it's a gimmick, from others I heart it's amazing"[b][/b]
People say it's amazing because it's like an ordinary picture of a newspaper begins to animate or something.. It's just unusual thing for people to see it the way which is not they used to see it before...
Bologna. I have been using stereo 3d for years and it has not been just some novelty that wears off after a while. It significantly enhances my gaming experiences, and brings an incredible sense of immersion, especially is newer games that are wonderfully rendered with realistic graphics. The 3d stereo effect has improved as games have gotten better looking, as scenes contain a lot of subtle and realistic secondary effects that become much more enticing and impressive in 3d.
I find that I get more impressed with 3d stereo every time I fire up the newest 3d ready game. Black ops, for example, was a mediocre game, but in 3d stereo, the immersion was such that it was a simply incredible experience to play through.
The human race divides politically into those who want people to be controlled and those who have no such desire.
For the way I set up 3D Vision, I describe it to people that the game world on the screen is like looking out the window. I hate it when people compare it to the old analygraph 3D in older movies or even the 3D in movies today. Even as good as Avatar was in 3D, it can't come close to how well 3D works on my PC.
For the way I set up 3D Vision, I describe it to people that the game world on the screen is like looking out the window. I hate it when people compare it to the old analygraph 3D in older movies or even the 3D in movies today. Even as good as Avatar was in 3D, it can't come close to how well 3D works on my PC.
Also, I think marketers do a dis-service to 3D by always showing it with fighter planes or people floating out of the screen in mid-air like some sort of Back to the Future II style holographic projection. I mean, 3D is cool, but it is not there yet. Its certainly more like looking out a window, than having the game characters popping out of the screen. I think advertising it like this just disappoints people when they actually see it.
Also, I think marketers do a dis-service to 3D by always showing it with fighter planes or people floating out of the screen in mid-air like some sort of Back to the Future II style holographic projection. I mean, 3D is cool, but it is not there yet. Its certainly more like looking out a window, than having the game characters popping out of the screen. I think advertising it like this just disappoints people when they actually see it.
I think that sort of image is legit for cinema. Remember that scene in Avatar where the jelly fish like things floated around cinema.
In the cinema you have the whole room for the popout to roam but you have say 0.5m if you use a monitor. So as you say depth is more pronounced in games.
I think that sort of image is legit for cinema. Remember that scene in Avatar where the jelly fish like things floated around cinema.
In the cinema you have the whole room for the popout to roam but you have say 0.5m if you use a monitor. So as you say depth is more pronounced in games.
Lord, grant me the serenity to accept the things I cannot change, the courage to change the things I can, and the wisdom to know the difference.
-------------------
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[quote name='jaafaman' date='01 January 2011 - 06:38 AM' timestamp='1293881931' post='1169430']
Then try spending a full day, going about your normal routine, wearing an eye patch. But I would suggest trying to [i]drive[/i] in a wide-open space, away from damaging obstacles...
[/quote]
But if I do that than I won't really be able to see anything. I'm blind in one eye, so I can't just put an eye patch on, and walk around. I doubt I would really be able to tell much difference with the patch covering my blind eye. So 3D is more of looking at an inner depth, well I wonder what that looks like.
[quote name='jaafaman' date='01 January 2011 - 06:38 AM' timestamp='1293881931' post='1169430']
Then try spending a full day, going about your normal routine, wearing an eye patch. But I would suggest trying to drive in a wide-open space, away from damaging obstacles...
But if I do that than I won't really be able to see anything. I'm blind in one eye, so I can't just put an eye patch on, and walk around. I doubt I would really be able to tell much difference with the patch covering my blind eye. So 3D is more of looking at an inner depth, well I wonder what that looks like.
Anyone with at least one eye can see depth in real life however; simply by moving your head in any direction, your brain can perceive depth because it can see things from a slightly different angle. Having two eyes allows for far more precision, but it's not necessary.
So how can people with one eye perceive [b][i]faked[/i][/b] 3D? Simple, you just have to present an image to the person viewing, based on where their head is in relation to the display. Watch this video, and you'll see a fantastic example of this:
http://www.youtube.com/watch?v=Jd3-eiid-Uw
Obviously you'd only experience the actual effect if you were in the room, with the head tracking gear on, but you can see it works. No 3D glasses, no 120Hz screen.
There are problems though. It can only be done by very rapidly tracking slight changes to the position and angle of your head, and then rendering an image based on that. It would also require either head tracking gear, or precise face tracking software for a video camera, and only one person can witness the effect at once. All this means that 3D movies are totally out of the question also, because movies are pre-rendered. Sadly for people with single eye vision, this 3D technique doesn't look like taking off in the near future. You'll probably need to wait until holographic 3D takes off, maybe in 10-15 years.
Anyone with at least one eye can see depth in real life however; simply by moving your head in any direction, your brain can perceive depth because it can see things from a slightly different angle. Having two eyes allows for far more precision, but it's not necessary.
So how can people with one eye perceive faked 3D? Simple, you just have to present an image to the person viewing, based on where their head is in relation to the display. Watch this video, and you'll see a fantastic example of this:
Obviously you'd only experience the actual effect if you were in the room, with the head tracking gear on, but you can see it works. No 3D glasses, no 120Hz screen.
There are problems though. It can only be done by very rapidly tracking slight changes to the position and angle of your head, and then rendering an image based on that. It would also require either head tracking gear, or precise face tracking software for a video camera, and only one person can witness the effect at once. All this means that 3D movies are totally out of the question also, because movies are pre-rendered. Sadly for people with single eye vision, this 3D technique doesn't look like taking off in the near future. You'll probably need to wait until holographic 3D takes off, maybe in 10-15 years.
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Nah.. One eye view is completely different in brain and it doesn't matter you change your view angle.. Brain doesn't calculate 3d distance and gives a depth sense according to it's previous memory of view... It's like calculating a triangle's height.. It needs both side length and angles at the same time to calcualte it right..
Nah.. One eye view is completely different in brain and it doesn't matter you change your view angle.. Brain doesn't calculate 3d distance and gives a depth sense according to it's previous memory of view... It's like calculating a triangle's height.. It needs both side length and angles at the same time to calcualte it right..
[i]"Anyone with at least one eye can see depth in real life however; simply by moving your head in any direction, your brain can perceive depth because it can see things from a slightly different angle. Having two eyes allows for far more precision, but it's not necessary."[/i]
Nah.. One eye view is completely different in brain and it doesn't matter you change your view angle.. Brain doesn't calculate 3d distance and gives a depth sense according to it's previous memory of view... It's like calculating a triangle's height.. It needs both side length and angles at the same time to calcualte it right..
[/quote]
But it still gives a 3D effect, otherwise people with one eye would genuinely perceive a TV to contain depth. If you place an object in front of you and move your head, your brain can see a changing image, and thus correctly interprets this as being an actual 3D object in the room in front of you. Move your head in front of a TV, and the image does not change, thus the brain knows it is 2D. This happens regardless of whether you have one or two eyes. Having two eyes greatly enhances our ability to see depth, especially when we are stationary, but it's not totally necessary.
"Anyone with at least one eye can see depth in real life however; simply by moving your head in any direction, your brain can perceive depth because it can see things from a slightly different angle. Having two eyes allows for far more precision, but it's not necessary."
Nah.. One eye view is completely different in brain and it doesn't matter you change your view angle.. Brain doesn't calculate 3d distance and gives a depth sense according to it's previous memory of view... It's like calculating a triangle's height.. It needs both side length and angles at the same time to calcualte it right..
But it still gives a 3D effect, otherwise people with one eye would genuinely perceive a TV to contain depth. If you place an object in front of you and move your head, your brain can see a changing image, and thus correctly interprets this as being an actual 3D object in the room in front of you. Move your head in front of a TV, and the image does not change, thus the brain knows it is 2D. This happens regardless of whether you have one or two eyes. Having two eyes greatly enhances our ability to see depth, especially when we are stationary, but it's not totally necessary.
My Laptop:
Toshiba Satellite A665 - 15.6" 120Hz 3D LCD - Intel Core i7 740QM (1.73GHz x 4)
4GB 1066MHz DDR3 RAM - Nvidia 3D Vision - Nvidia 350M 1GB - 3D Blu-Ray RW - 500GB HDD
To answer your question, though, of what 3D is: it is really hard to describe to someone who hasn't seen it. Imagine trying to explain what the color green looks like to someone who is color-blind. Or describing Mozart to the deaf. Or describing an orgasm to a virgin. No matter how well you explain it, there is always a disconnect where you just have to experience it for yourself. That said, I will do my best to try. 3D vision (or stereopsis) is the experience of visual depth. This is literally another dimension in which to perceive space (with only 1 eye you would be seeing in 2D). What this extra information adds is this sort of fullness and tangibility to objects in your visual field. For example, if I were to place my hand in front on my face (about midway between my monitor) I get the impression that my hand is a distinct object from the monitor. Of course, I know this to be true. However seeing it in 3D, I can feel a volume of empty space around my hand. If I close one eye, then my hand simply blends into the screen. There is not a visual distinction between them in space (aside from known cues that I discussed earlier). Also, if I were to move my hand even closer to my face, it would become uncomfortable because the 2 eyes could not focus on such a close object and still have the rest of the periphery clearly visible. So I would get this blurry double-image effect that hurts my eyes. This does not happen with one eye closed. This type of problem (difficulty to focus with double-images) sometimes happens with badly authored 3D content, like some early 3D movies (or 3D games with incorrect settings). Which is also one of the reasons people think 3D gives you headaches (although not one of the main ones).
Its important to understand what I mean by a sense of "volume". This refers to the fact that an object is a physical entity occupying space in the real world. For example, you could look at a photograph and it is clearly just a flat piece of paper. If you were to be at the location the photograph was taken, then you would feel you were in a real space (even with one eye closed). You could walk around and see different perspectives of the scene, you can experience it in 3 dimensions. Here is a better example. Pick something up that is on your desk. Yes, actually do this now. You can pick up your mouse, a pair of glasses, your keys. Something small. If you are fully sighted please close one eye to do this. First just hold the object and look at it. Well it seems real, you are holding it and you can see it (in 2D). Now begin touching it with both hands. Turn the object around and touch it from every angle and position. Feel the volume of the object as it is physically tangible in space. This actually creates a 3 dimensional construct in your mind. A spatial awareness that is independent of sight. Here is another test of 3D spatial awareness. Move back from your computer a bit so you have some room to move your arms around. Now close your eyes. With your two hands stick your index finger out (like you are pointing at something) and close the rest of your fingers. Now move your left hand to some random point is space (remember, your eyes are closed). Now with your right hand, move it so your index fingers touch. Now move your right finger to some random point and try finding it with your left finger. Notice how you can do this without looking? This is because the mind has a 3 dimensional construct of the body (and to a lesser extent, the surrounding environment) that is independent of sight. So even if you can only see in 2D, or you are completely blind, there is still a spatial awareness that infers the depth of reality, without needing to visually experience 3D. Now this doesn't explain really what 3D looks like, but it does somewhat relate to how 3D feels (since you are using your sense of touch, but the underlying information is the same; ie the shape and volume of an object).
As much as 3D is about the volume of physical objects, it is also about the perception of empty space (which is maybe more important to depth perception). With only one eye open, to me everything looks very flat. As objects appear to be visual (and physically) on top of each other. Since empty space is not visible (except in the case of fog, etc.) there is not a visual distinction between overlapping objects. For example, right now in 2D my hands, the keyboard, the monitor, the wall behind it, they all seem to exist on the same plane. Such as looking at a photograph or a picture on TV. Of course there is an implied distinction, ie the knowledge that my hands are not part of the keyboard. However, visually that are part of the same thing. There is no experience of the empty space. With 3D vision, however, you can almost see the emptiness. The same way how when you feel an object in your hand, you can experience its volume, that it is tangible. Well with 3D vision you can "sense" the intangible. It is not the same as sight, since you are not seeing anything (you cannot see nothingness). And you are not exactly feeling it either. But it is a sense, nonetheless. It is this sense of nothing that actually gives objects their depth and differentiates them from the background of the scene (such as your wall, the sky, etc.). The way this happens is that when you see with two eyes, you are seeing two different angles of the same scene. Due to the way objects shift in space between each eye, the mind is able to generate a sort of depth-map of the scene. This is a similar experience to the spatial awareness you have of your own body (like in the finger experiment) however now it includes everything within your visual perception (up to a certain distance, maybe 30 meters). This experience actually makes the world seem more vast, like you have breathing room. In 2D the experience is more constricting and cluttered, like everything is on top of you. So the experience of 3D is somewhat liberating in a sense. For example, like the feeling you get when you just get off of a crowded bus or airplane. Or the feeling you have when at the beach, or in a wide open grass field (as apposed to inside a car or your room). The important aspect is that there is a sense of the empty space. However, if you were born sighted only in one eye, it is possible your mind has adapted to make your perception different than mine. So since I am used to seeing in 3D, my mind may rely on this sense to create the world around me (of rather my mind's perception of the real world). If you developed with only one eye, then maybe you too have a sense of empty space even if you cannot see it visually (similar to how you can touch your fingers with your eyes closed).
There is actually some merit to this. Case in point, there is a 100-year-old invention called the Synopter which claims to make a user experience depth of a 2D image ( http://www.newscientist.com/article/dn19825-new-gadget-promises-3d-without-the-headaches.html ). Basically its a device, lets think of it as a pair of binoculars. There are two lens for your eyes, but only one lens that sees the world. Inside the device are a construction of mirrors and lenses, such that each of your eyes sees the same exact thing. What they found was that people were still able to experience depth, even though binocular disparity had been removed (meaning both eyes saw the same thing). Now this was with fully sighted people, that already knew what stereopsis felt like. But it demonstrates how the mind is able to adapt to the absence of external stimuli. There have also been experiments where people where forced to wear glasses that turned everything upside down. After about a week of wearing the glasses, something with "flip" in their mind and they would now see normally. There is another more recent experiment where completely blind people are given a device so they can "see" with their tongue. Basically they wear glasses with a camera on it, and then a device sits on their tongue which converts the visual image into electrical impulses (like licking a 9 volt battery). There is similar work being done where completely blind people can gain stereoscopic 3D awareness through sound ( http://www.seeingwithsound.com/binocular.htm ). Another more practical effect like this can be seen with wiggle stereoscopy. This is when 2 images (say a left and right eye view) are toggled between each other rapidly (usually in an animated gif). This can give the impression of a 3D image, even on a 2D screen or with one eye closed. Here is a good example:
[img]http://www.burningmanopera.org/2002/Uta_bar.gif[/img]
You can see more images from this set here: http://www.burningmanopera.org/2002/2002_stereo_wiggle2.html
Notice how there is now this sense of space that you do not get with a regular image. For example, the vodka bottle is clearly in front of the girl and feels like a distinct object. You also get an impression of the surroundings. Like look at the white fabric above her head. Notice how you can tell it is above her and not behind her (like the red and orange sheets)? This is because there is an implication of depth and a separation of objects in space (depending on their relative depths, they will shift differently between views). This gives the impression of volume (like with the vodka bottle) but also empty space, a sort of atmosphere (ie that the girl is in some sort of tent). This is basically what 3D vision adds to the visual experience. Obviously this illusion is not exactly the same as the true experience of stereoscopic vision. However, it is probably the best example of 3D that can be viewed strictly in 2D.
Here is another example:
[img]http://i91.photobucket.com/albums/k283/been240/uldeadoldpaintingframerate.gif[/img]
This one is cool:
[img]http://www.mediavr.com/3d/wp-content/uploads/2009/02/acrobat1.gif[/img]
This one has like 9 views, so more accuracy:
http://www.mediavr.com/fountain.htm
This is also cool:
http://www.mediavr.com/3d/
Here is a video that uses this same effect (it is not the best example of 3D, but it is the only video I know of):
http://www.youtube.com/watch?v=RPT7xbhqodo
Hopefully these examples will give you some sense of what it is like to experience 3D Vision. Of course, they can only take you so far, but I hope you will have a better understanding of the subject after reading this post. If anything I talked about is not clear, or you have any questions, please feel free to ask.
To answer your question, though, of what 3D is: it is really hard to describe to someone who hasn't seen it. Imagine trying to explain what the color green looks like to someone who is color-blind. Or describing Mozart to the deaf. Or describing an orgasm to a virgin. No matter how well you explain it, there is always a disconnect where you just have to experience it for yourself. That said, I will do my best to try. 3D vision (or stereopsis) is the experience of visual depth. This is literally another dimension in which to perceive space (with only 1 eye you would be seeing in 2D). What this extra information adds is this sort of fullness and tangibility to objects in your visual field. For example, if I were to place my hand in front on my face (about midway between my monitor) I get the impression that my hand is a distinct object from the monitor. Of course, I know this to be true. However seeing it in 3D, I can feel a volume of empty space around my hand. If I close one eye, then my hand simply blends into the screen. There is not a visual distinction between them in space (aside from known cues that I discussed earlier). Also, if I were to move my hand even closer to my face, it would become uncomfortable because the 2 eyes could not focus on such a close object and still have the rest of the periphery clearly visible. So I would get this blurry double-image effect that hurts my eyes. This does not happen with one eye closed. This type of problem (difficulty to focus with double-images) sometimes happens with badly authored 3D content, like some early 3D movies (or 3D games with incorrect settings). Which is also one of the reasons people think 3D gives you headaches (although not one of the main ones).
Its important to understand what I mean by a sense of "volume". This refers to the fact that an object is a physical entity occupying space in the real world. For example, you could look at a photograph and it is clearly just a flat piece of paper. If you were to be at the location the photograph was taken, then you would feel you were in a real space (even with one eye closed). You could walk around and see different perspectives of the scene, you can experience it in 3 dimensions. Here is a better example. Pick something up that is on your desk. Yes, actually do this now. You can pick up your mouse, a pair of glasses, your keys. Something small. If you are fully sighted please close one eye to do this. First just hold the object and look at it. Well it seems real, you are holding it and you can see it (in 2D). Now begin touching it with both hands. Turn the object around and touch it from every angle and position. Feel the volume of the object as it is physically tangible in space. This actually creates a 3 dimensional construct in your mind. A spatial awareness that is independent of sight. Here is another test of 3D spatial awareness. Move back from your computer a bit so you have some room to move your arms around. Now close your eyes. With your two hands stick your index finger out (like you are pointing at something) and close the rest of your fingers. Now move your left hand to some random point is space (remember, your eyes are closed). Now with your right hand, move it so your index fingers touch. Now move your right finger to some random point and try finding it with your left finger. Notice how you can do this without looking? This is because the mind has a 3 dimensional construct of the body (and to a lesser extent, the surrounding environment) that is independent of sight. So even if you can only see in 2D, or you are completely blind, there is still a spatial awareness that infers the depth of reality, without needing to visually experience 3D. Now this doesn't explain really what 3D looks like, but it does somewhat relate to how 3D feels (since you are using your sense of touch, but the underlying information is the same; ie the shape and volume of an object).
As much as 3D is about the volume of physical objects, it is also about the perception of empty space (which is maybe more important to depth perception). With only one eye open, to me everything looks very flat. As objects appear to be visual (and physically) on top of each other. Since empty space is not visible (except in the case of fog, etc.) there is not a visual distinction between overlapping objects. For example, right now in 2D my hands, the keyboard, the monitor, the wall behind it, they all seem to exist on the same plane. Such as looking at a photograph or a picture on TV. Of course there is an implied distinction, ie the knowledge that my hands are not part of the keyboard. However, visually that are part of the same thing. There is no experience of the empty space. With 3D vision, however, you can almost see the emptiness. The same way how when you feel an object in your hand, you can experience its volume, that it is tangible. Well with 3D vision you can "sense" the intangible. It is not the same as sight, since you are not seeing anything (you cannot see nothingness). And you are not exactly feeling it either. But it is a sense, nonetheless. It is this sense of nothing that actually gives objects their depth and differentiates them from the background of the scene (such as your wall, the sky, etc.). The way this happens is that when you see with two eyes, you are seeing two different angles of the same scene. Due to the way objects shift in space between each eye, the mind is able to generate a sort of depth-map of the scene. This is a similar experience to the spatial awareness you have of your own body (like in the finger experiment) however now it includes everything within your visual perception (up to a certain distance, maybe 30 meters). This experience actually makes the world seem more vast, like you have breathing room. In 2D the experience is more constricting and cluttered, like everything is on top of you. So the experience of 3D is somewhat liberating in a sense. For example, like the feeling you get when you just get off of a crowded bus or airplane. Or the feeling you have when at the beach, or in a wide open grass field (as apposed to inside a car or your room). The important aspect is that there is a sense of the empty space. However, if you were born sighted only in one eye, it is possible your mind has adapted to make your perception different than mine. So since I am used to seeing in 3D, my mind may rely on this sense to create the world around me (of rather my mind's perception of the real world). If you developed with only one eye, then maybe you too have a sense of empty space even if you cannot see it visually (similar to how you can touch your fingers with your eyes closed).
There is actually some merit to this. Case in point, there is a 100-year-old invention called the Synopter which claims to make a user experience depth of a 2D image ( http://www.newscientist.com/article/dn19825-new-gadget-promises-3d-without-the-headaches.html ). Basically its a device, lets think of it as a pair of binoculars. There are two lens for your eyes, but only one lens that sees the world. Inside the device are a construction of mirrors and lenses, such that each of your eyes sees the same exact thing. What they found was that people were still able to experience depth, even though binocular disparity had been removed (meaning both eyes saw the same thing). Now this was with fully sighted people, that already knew what stereopsis felt like. But it demonstrates how the mind is able to adapt to the absence of external stimuli. There have also been experiments where people where forced to wear glasses that turned everything upside down. After about a week of wearing the glasses, something with "flip" in their mind and they would now see normally. There is another more recent experiment where completely blind people are given a device so they can "see" with their tongue. Basically they wear glasses with a camera on it, and then a device sits on their tongue which converts the visual image into electrical impulses (like licking a 9 volt battery). There is similar work being done where completely blind people can gain stereoscopic 3D awareness through sound ( http://www.seeingwithsound.com/binocular.htm ). Another more practical effect like this can be seen with wiggle stereoscopy. This is when 2 images (say a left and right eye view) are toggled between each other rapidly (usually in an animated gif). This can give the impression of a 3D image, even on a 2D screen or with one eye closed. Here is a good example:
You can see more images from this set here: http://www.burningmanopera.org/2002/2002_stereo_wiggle2.html
Notice how there is now this sense of space that you do not get with a regular image. For example, the vodka bottle is clearly in front of the girl and feels like a distinct object. You also get an impression of the surroundings. Like look at the white fabric above her head. Notice how you can tell it is above her and not behind her (like the red and orange sheets)? This is because there is an implication of depth and a separation of objects in space (depending on their relative depths, they will shift differently between views). This gives the impression of volume (like with the vodka bottle) but also empty space, a sort of atmosphere (ie that the girl is in some sort of tent). This is basically what 3D vision adds to the visual experience. Obviously this illusion is not exactly the same as the true experience of stereoscopic vision. However, it is probably the best example of 3D that can be viewed strictly in 2D.
Here is another example:
This one is cool:
This one has like 9 views, so more accuracy:
http://www.mediavr.com/fountain.htm
This is also cool:
http://www.mediavr.com/3d/
Here is a video that uses this same effect (it is not the best example of 3D, but it is the only video I know of):
Hopefully these examples will give you some sense of what it is like to experience 3D Vision. Of course, they can only take you so far, but I hope you will have a better understanding of the subject after reading this post. If anything I talked about is not clear, or you have any questions, please feel free to ask.
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People say it's amazing because it's like an ordinary picture of a newspaper begins to animate or something.. It's just unusual thing for people to see it the way which is not they used to see it before...
You can experience 3d and 2d version of hearing by blocking one of your ears in a noisy place.. Seeing in 3d is mostly the same... You can't know the distance of a sound source even can't know if it is from the left side or from the right side with only one ear....
People say it's amazing because it's like an ordinary picture of a newspaper begins to animate or something.. It's just unusual thing for people to see it the way which is not they used to see it before...
You can experience 3d and 2d version of hearing by blocking one of your ears in a noisy place.. Seeing in 3d is mostly the same... You can't know the distance of a sound source even can't know if it is from the left side or from the right side with only one ear....
Thank You, your post was very insightful. I kind of wish I could enjoy a 3D experience, but than again such is life, I'm sure a deaf person would like to enjoy music, or a blind man the sight of the night sky. We are given handicaps by fate, and we must enjoy our limitations. I did enjoy learning, thank you.
Thank You, your post was very insightful. I kind of wish I could enjoy a 3D experience, but than again such is life, I'm sure a deaf person would like to enjoy music, or a blind man the sight of the night sky. We are given handicaps by fate, and we must enjoy our limitations. I did enjoy learning, thank you.
Thank You, your post was very insightful. I kind of wish I could enjoy a 3D experience, but than again such is life, I'm sure a deaf person would like to enjoy music, or a blind man the sight of the night sky. We are given handicaps by fate, and we must enjoy our limitations. I did enjoy learning, thank you.
Thank You, your post was very insightful. I kind of wish I could enjoy a 3D experience, but than again such is life, I'm sure a deaf person would like to enjoy music, or a blind man the sight of the night sky. We are given handicaps by fate, and we must enjoy our limitations. I did enjoy learning, thank you.
Then try spending a full day, going about your normal routine, wearing an eye patch. But I would suggest trying to [i]drive[/i] in a wide-open space, away from damaging obstacles...
Then try spending a full day, going about your normal routine, wearing an eye patch. But I would suggest trying to drive in a wide-open space, away from damaging obstacles...
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[i]" I really have no idea what it looks like to some I hear it's a gimmick, from others I heart it's amazing"[/i][b][/b]
People say it's amazing because it's like an ordinary picture of a newspaper begins to animate or something.. It's just unusual thing for people to see it the way which is not they used to see it before...
[/quote]
Bologna. I have been using stereo 3d for years and it has not been just some novelty that wears off after a while. It significantly enhances my gaming experiences, and brings an incredible sense of immersion, especially is newer games that are wonderfully rendered with realistic graphics. The 3d stereo effect has improved as games have gotten better looking, as scenes contain a lot of subtle and realistic secondary effects that become much more enticing and impressive in 3d.
I find that I get more impressed with 3d stereo every time I fire up the newest 3d ready game. Black ops, for example, was a mediocre game, but in 3d stereo, the immersion was such that it was a simply incredible experience to play through.
" I really have no idea what it looks like to some I hear it's a gimmick, from others I heart it's amazing"[b][/b]
People say it's amazing because it's like an ordinary picture of a newspaper begins to animate or something.. It's just unusual thing for people to see it the way which is not they used to see it before...
Bologna. I have been using stereo 3d for years and it has not been just some novelty that wears off after a while. It significantly enhances my gaming experiences, and brings an incredible sense of immersion, especially is newer games that are wonderfully rendered with realistic graphics. The 3d stereo effect has improved as games have gotten better looking, as scenes contain a lot of subtle and realistic secondary effects that become much more enticing and impressive in 3d.
I find that I get more impressed with 3d stereo every time I fire up the newest 3d ready game. Black ops, for example, was a mediocre game, but in 3d stereo, the immersion was such that it was a simply incredible experience to play through.
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In the cinema you have the whole room for the popout to roam but you have say 0.5m if you use a monitor. So as you say depth is more pronounced in games.
In the cinema you have the whole room for the popout to roam but you have say 0.5m if you use a monitor. So as you say depth is more pronounced in games.
Lord, grant me the serenity to accept the things I cannot change, the courage to change the things I can, and the wisdom to know the difference.
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Then try spending a full day, going about your normal routine, wearing an eye patch. But I would suggest trying to [i]drive[/i] in a wide-open space, away from damaging obstacles...
[/quote]
But if I do that than I won't really be able to see anything. I'm blind in one eye, so I can't just put an eye patch on, and walk around. I doubt I would really be able to tell much difference with the patch covering my blind eye. So 3D is more of looking at an inner depth, well I wonder what that looks like.
Then try spending a full day, going about your normal routine, wearing an eye patch. But I would suggest trying to drive in a wide-open space, away from damaging obstacles...
But if I do that than I won't really be able to see anything. I'm blind in one eye, so I can't just put an eye patch on, and walk around. I doubt I would really be able to tell much difference with the patch covering my blind eye. So 3D is more of looking at an inner depth, well I wonder what that looks like.