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Lecture 22: Virtual Reality (46)
cchendyc

Why do we need two different but similar pics instead of a whole 2d picture? There's an implication of its use in detecting the real-life depth of a scene but since our eyes are naturally adapted to view one full scene with both eyes, isn't stereo vergence conflict with the intuitive simulation?

ananthmrao

@cchendyc It's like how two ears hear one sound. Basically, our brain subliminally processes the information from both eyes to provide one picture with understanding of depth

micahtyong

Are there any existing techniques that can take in a single image, then generate the "left-eye" and "right-eye" perspective for a VR setting? Perhaps the invention of the Autostereogram is relevant?

crystal-zq-wang

Is this referring to stereoscopy, where you can perceive depth in an image by crossing your eyes to view two similar images? Stereoscopes used to be popular devices for entertainment from the mid 1800s to early 1900s - it's interesting to see their modern applications in VR!

JefferyYC

I believe 3D glasses in 3D movies rely on this binocular cue to create a sense of depth. For every scene in the movie there are two images corresponding to left and right perspective. The left is only seen by left eye and right only by right eye through light filtering. And our brain will fuse the two images together to form a sense of depth.

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