In the left eye panel of the stereogram the distance " AB " is the representation of the front face of the cube, in the right eye panel, there is in addition " BC ", the representation of the cube's depth, i . e ., the intercept on the screen of the rays from the cameras principal points to the back of the cube.
42.
"Bela Julesz's work really revolutionized the field, because the random-dot stereogram became a purer test for the study of stereoscopic vision, " said Dr . Robert H . Wurtz, chief of the visual-motor integration section of the National Eye Institute in Bethesda, Md . " He was the first among us to e { tablisulesz was born in Budapest on Feb . 19, 1928, and did engineering research on microwave systems and television signals before receiving a doctorate from the Hungarian Academy of Sciences in 1956.
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In 1979, Christopher Tyler of Smith-Kettlewell Institute, a student of Julesz and a visual psychophysicist, combined the theories behind single-image wallpaper stereograms and random-dot stereograms ( the work of Julesz and Schilling ) to create the first black-and-white " random-dot autostereogram " ( also known as single-image random-dot stereogram ) with the assistance of computer programmer Maureen Clarke using Apple II and BASIC . This type of autostereogram allows a person to see 3D shapes from a single 2D image without the aid of optical equipment.
