Illumination-insensitive face recognition using symmetricshape-from-shading
Wen Yi Zhao; Chellappa, R.
Computer Vision and Pattern Recognition, 2000. Proceedings. IEEE Conference on
Volume 1, Issue , 2000 Page(s):286 - 293 vol.1
Digital Object Identifier 10.1109/CVPR.2000.855831
Summary:Sensitivity to variations in illumination is a fundamental and
challenging problem in face recognition. In this paper, we describe a
new method based on symmetric shape-from-shading (SSFS) to develop a
face recognition system that is robust to changes in illumination. The
basic idea of this approach is to use the SSFS algorithm as a tool to
obtain a prototype image which is illumination-normalized. It has been
shown that the SSFS algorithm has a unique point-wise solution. But it
is still difficult to recover accurate shape information given a single
real face image with complex shape and varying albedo. In stead, we
utilize the fact that all faces share a similar shape making the direct
computation of the prototype image from a given face image feasible.
Finally, to demonstrate the efficacy of our method, we have applied it
to several publicly available face databases
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