Single image estimation of facial albedo maps

Authors:
William A. P. Smith;Edwin R. Hancock
Affiliations:
Department of Computer Science, The University of York;Department of Computer Science, The University of York
Venue:
BVAI'05 Proceedings of the First international conference on Brain, Vision, and Artificial Intelligence
Year:
2005

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Abstract

This paper describes how a facial albedo map can be recovered from a single image using a statistical model that captures variations in surface normal direction. We fit the model to intensity data using constraints on the surface normal direction provided by Lambert's law and then use the differences between observed and reconstructed image brightness to estimate the albedo map. We show that this process is stable under varying illumination and use the process to render images under novel illumination.