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We describe a novel approach for matching and recognition, based on deformable intensity surfaces. In this approach, the intensity surface of the image is modeled as a deformable thin plate, and its strain energy while deforming to a new image is measured for recognition. Each surface point has 3 degrees of freedom, thus capturing fine surface changes. The method is validated for recognition and interactive search in a large-scale face database.
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Nastar et al. (2002) studied this question.