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Pattern Recognition, International Conference on (2006)
Hong Kong
Aug. 20, 2006 to Aug. 24, 2006
ISSN: 1051-4651
ISBN: 0-7695-2521-0
pp: 86-90
William A. P. Smith , University of York,York, YO10 5DD, UK
Edwin R. Hancock , University of York,York, YO10 5DD, UK
This paper describes a method for cast shadow removal from obliquely illuminated images of faces. The method draws on a statistical model of surface normal directions. The model is fitted to shadowed facial images using robust statistics and constraints provided by shape-from-shading. Regions associated with poor fit residuals are associated with shadow regions. We illustrate the method on the Yale B database where it gives both good shadow map estimates and fills-in the facial surface in the shadow regions.

E. R. Hancock and W. A. Smith, "Estimating Cast Shadows using SFS and Class-based Surface Completion," 2006 18th International Conference on Pattern Recognition(ICPR), Hong Kong, 2006, pp. 86-90.
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