Poom L, 2002, "Seeing stereoscopic depth from disparity between kinetic edges" Perception 31(12) 1439 – 1448
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Seeing stereoscopic depth from disparity between kinetic edges
Received 21 November 2001, in revised form 7 July 2002; published online 13 November 2002
Abstract. Traditionally, it is assumed that stereovision operates only on the positional difference (disparity) between luminance-defined features in the images in the left and the right eye. Here, I show that stereoscopic depth can be seen from disparity between edges created by relative motion of texture elements, and between edges created by correlated flicker of stationary texture elements. Luminance-based stereopsis was impossible since the texture was binocularly uncorrelated. Positional disparity of the centre of revolving patterns was not an efficient depth cue. Stereopsis from the stimuli presented here was possible even without binocular overlap of textured areas. The results provide evidence that positional disparity of kinetic edges, defined by correlated flicker or motion contrast alone, can be used as matching features to recover stereoscopic depth.
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