Takeshi Shakunaga Yasuhara Matsubara Kiyoshi Noguchi Appearance Tracker Based on Sparse Eigentemplate. 13-17 2005 MVA http://b2.cvl.iis.u-tokyo.ac.jp/mva/proceedings/CommemorativeDVD/2005/papers/2005013.pdf conf/mva/2005 db/conf/mva/mva2005.html#ShakunagaMN05