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Creation of Stereoscopy
The art of stereoscopy was first designed by a English scientist named Charles Wheatstone in 1838. He created the first stereoscope to view false 3D images by showing two simple, similar images. -
Basics
At its simplest, stereoscopy is the art of using similar repeated images with slight differences in each image to create 3D images. This can be in the form of stereograms or two stereoscopic cards. Your brain can use the differences in each of the images to create a single 3D image. Your eyes are about 62-64 mm apart, so each eye sees a slightly different image of the same thing. The brain then fuses these images to understand depth. Stereograms and stereoscopy is a way to fake this effect. -
Evolution of the stereoscope
The stereoscope then passed on in the form of a hand-held device made after the invention of photography by David Brewster years later. His stereoscope had two lenses that were eye distance apart and each eye was shown a similar image on rotating disc. -
Beginning of RDS
RDS was made in 1919 -
Origin of RDS
It was then used by the USA during WW2 using two different pictures taken from planes to find Nazi forces. This led to the creation of the random-dot stereogram. Which is the kind with a hidden image. -
RDS
These were made in 1919, and used by Bela Julesz in the 1960's as an experiment to test depth. It proved that depth info comes from our brain, rather than our eyes. This evolved into the autostereogram.
