Abstract:
We present a general framework for face modeling under varying lighting conditions. First, we show that a face lighting subspace can be constructed based on three or more...View moreMetadata
Abstract:
We present a general framework for face modeling under varying lighting conditions. First, we show that a face lighting subspace can be constructed based on three or more training face images illuminated by noncoplanar lights. The lighting of any face image can be represented as a point in this subspace. Second, we show that the extreme rays, i.e. the boundary of an illumination cone, cover the entire light sphere. Therefore, a relatively sparsely sampled face images can be used to build a face model instead of calculating each extremely illuminated face image. Third, we present a face normalization algorithm, illumination alignment, i.e. changing the lighting of one face image to that of another face image. Experiments are presented.
Date of Conference: 17-17 October 2003
Date Added to IEEE Xplore: 27 October 2003
Print ISBN:0-7695-2010-3