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Uniqueness for shape from shading via photometric stereo technique

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1 Author(s)
Roberto Mecca ; Dipartimento di Matematica ”G. Castelnuovo”, Sapienza - Universitá di Roma

We deal with the inverse problem of reconstructing a surface with photometric stereo technique, i.e. using two or more pictures of the surface lighted under different light sources. The new model studied in this paper allows us to extend previous results [1, 2] obtaining a uniqueness result and to solve the classical convex/concave ambiguity of the Shape from Shading (SfS) problem. Finally, we propose an approximation scheme for the solution of the problem testing it on real and synthetic images.

Published in:

2011 18th IEEE International Conference on Image Processing

Date of Conference:

11-14 Sept. 2011