Image-based face recognition under illumination and pose variations

TitleImage-based face recognition under illumination and pose variations
Publication TypeJournal Articles
Year of Publication2005
AuthorsZhou S K, Chellappa R
JournalJournal of the Optical Society of America AJ. Opt. Soc. Am. A
Pagination217 - 229
Date Published2005/02/01/
Keywordsillumination, pattern recognition

We present an image-based method for face recognition across different illuminations and poses, where the term image-based means that no explicit prior three-dimensional models are needed. As face recognition under illumination and pose variations involves three factors, namely, identity, illumination, and pose, generalizations in all these three factors are desired. We present a recognition approach that is able to generalize in the identity and illumination dimensions and handle a given set of poses. Specifically, the proposed approach derives an identity signature that is illumination- and pose-invariant, where the identity is tackled by means of subspace encoding, the illumination is characterized with a Lambertian reflectance model, and the given set of poses is treated as a whole. Experimental results using the Pose, Illumination, and Expression (PIE) database demonstrate the effectiveness of the proposed approach.