Wiggle Stereoscopy

( you should get sense of dimensionality )

A stereo camera is a type of camera with two or more lenses. This allows the camera to simulate human binocular vision, and therefore gives it the ability to capture three-dimensional images, a process known as stereo photography. The distance between the lenses in a typical stereo camera (the intra-axial distance) is about the distance between one's eyes (known as the intra-ocular distance) and is about 6.35cm.

3D pictures following the theory behind stereo cameras can also be made more inexpensively by taking two pictures with the same camera, but moving the camera a few inches either left or right. If the image is edited so that each eye sees a different image, then the image will appear to be 3D. This method has problems with objects moving in the different views, though works well with still life.
Stereo cameras gained great popularity in the 1950s and 1960s and most of them are no longer manufactured.

Wiggle stereoscopy method, possibly the simplest stereogram viewing technique, is to simply alternate between the left and right images of a stereogram. This can easily be accomplished with an animated .gif image. Most people can get a crude sense of dimensionality from such images, due to persistence of vision and parallax.
Recent research indicates that binocular vision is the results of timing and phase disparities in the visual cortex. By timing the wiggle just right and using the right amount of parallax we can fool the neural cortex into registering the sensation of binocular vision.

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