Hong-Wen Kang Yasuyuki Matsushita Xiaoou Tang Xue-Quan Chen 1331-1338 2006 conf/cvpr/2006 CVPR (2) http://doi.ieeecomputersociety.org/10.1109/CVPR.2006.284 db/conf/cvpr/cvpr2006-2.html#KangCMT06