Xiangsheng Huang Stan Z. Li Yangsheng Wang Statistical Learning of Evaluation Function for ASM/AAM Image Alignment. 45-56 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3087&spage=45 2004 conf/eccv/2004bioaw ECCV Workshop BioAW db/conf/eccv/eccv2004bioaw.html#HuangLW04