Yuhya Okada Masataka Ozu Teruko Sakurai Mitsuharu Inaba Shigeru Akamatsu Automatic Impression Transformation of Faces in 3D Shape - A Perceptual Comparison with Processing on 2D Images. 535-540 2006 conf/fgr/2006 FG http://doi.ieeecomputersociety.org/10.1109/FGR.2006.26 db/conf/fgr/fgr2006.html#OkadaOSIA06