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Philos Trans R Soc Lond B Biol Sci. 1991 Feb 28;331(1260):237-52.

Shape from specularities: computation and psychophysics.

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Department of Engineering Science, University of Oxford, U.K.

Erratum in

  • Philos Trans R Soc Lond Biol 1992 Dec 29;338(1286):417.


Images of artificial and natural scenes typically contain many 'specularities' generated by mirror-like reflection from glossy surfaces. Until fairly recently computational models of visual processes have tended to regard specularities as obscuring underlying scene structure. Mathematical modelling shows that, on the contrary, they are rich in local geometric information. Recent psychophysical findings support the notion that the brain can apply that information. Our results concern the inference of 3D structure from 2D shaded images of glossy surfaces. Stereoscopically viewed highlights or 'specularities' are found to serve as cues for 3D local surface-geometry.

[Indexed for MEDLINE]

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