Chapter 41. Real-Time Stereograms
Fabio Policarpo Paralelo Computação Ltda.
What Is a Stereogram?
A stereogram is a 2D image that encodes stereo information so that, when viewed correctly, it reveals a hidden 3D scene. It all started back in the 1960s, when Bela Julesz, who worked at (AT&T) Bell Labs researching human vision—particularly depth perception and pattern recognition—created the random-dot stereogram (RDS). Stereograms evolved from stereo photography, in which two photographs are taken from slightly different camera positions (representing the displacement between our eyes).
Stereo Photography
Stereo photography is very old, dating back to 1838, but some of the old stereo cameras and stereo photograph viewers, such as the one shown in ...
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