Hongming Zhang Wen Gao Xilin Chen Shiguang Shan Debin Zhao Robust Multi-view Face Detection Using Error Correcting Output Codes. 1-12 2006 conf/eccv/2006-4 ECCV (4) http://dx.doi.org/10.1007/11744085_1 db/conf/eccv/eccv2006-4.html#ZhangGCSZ06