Estimating local shape from shading in the presence of global shading.

Abstract

In theory, global shading may help with the estimation of local surface structure from shading (e.g., in specifying the illuminant direction). Empirically, we do not know whether human observers combine the information given by the local and global shading to estimate local shape. Observers had to indicate the orientation of a local elongated perturbation… (More)

Cite this paper

@article{Erens1993EstimatingLS, title={Estimating local shape from shading in the presence of global shading.}, author={Roderik G.F. Erens and Astrid M. L. Kappers and Jan J. Koenderink}, journal={Perception & psychophysics}, year={1993}, volume={54 3}, pages={334-42} }