Pattern Recognition, International Conference on (2006)
Aug. 20, 2006 to Aug. 24, 2006
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/ICPR.2006.498
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.