Design sparse features for age estimation using hierarchical face model.

Jin-Li Suo Tianfu Wu Song Chun Zhu Shiguang Shan Xilin Chen Wen Gao Design sparse features for age estimation using hierarchical face model. 1-6 2008 FG http://dx.doi.org/10.1109/AFGR.2008.4813314 conf/fgr/2008 db/conf/fgr/fg2008.html#SuoWZSCG08