Information limitations in perception of shape from texture

Vision Research
A Li, Q Zaidi

Abstract

Li and Zaidi (Li, A., and Zaidi, Q. (2000) Vision Research, 40, 217-242) showed that the veridical perception of the 3-dimensional (3D) shape of a corrugated surface from texture cues is entirely dependent on the visibility of critical patterns of oriented energy. These patterns are created by perspective projection of surface markings oriented along lines of maximum 3D curvature. In images missing these orientation modulations, observers confused concavities with convexities, and leftward slants with rightward slants. In this paper, it is shown that these results were a direct consequence of the physical information conveyed by different oriented components of the texture pattern. For texture patterns consisting of single gratings of arbitrary spatial frequency and orientation, equations are derived from perspective geometry that describe the local spatial frequency and orientation for any slant at any height above and below eye level. The analysis shows that only gratings oriented within a few degrees of the axis of maximum curvature exhibit distinct patterns of orientation modulations for convex, concave, and leftward and rightward slanted portions of a corrugated surface. All other gratings exhibit patterns of frequency and...Continue Reading

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Citations

Mar 23, 2005·Vision Research·James T ToddTjeerd M H Dijkstra
Apr 4, 2019·Journal of Vision·Zhongting Chen, Jeffrey A Saunders
Oct 5, 2001·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·A Li, Q Zaidi
Sep 1, 2011·Attention, Perception & Psychophysics·Joseph S LappinFlip Phillips

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