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Lecture Notes in Computer Science
Human face is one of the most common and useful keys to a person's identity. Many algorithms have been developed for automatic face recognition. And a number of commercial products have reached the market already. In general, however, many believe that the technology has yet to improve further, particularly to overcome the instability due to variable illuminations, expressions, poses and accessories. These variations often lead to large nonlinear variation in facial image. To date it is a verydoi:10.1007/3-540-44887-x_66 fatcat:irn4ep7dmneinkpqtmutvjvjve