Kazuhiro Morimoto Chiyomi Miyajima Norihide Kitaoka Katunobu Itou Kazuya Takeda Statistical segmentation and recognition of fingertip trajectories for a gesture interface. 54-57 2007 ICMI http://doi.acm.org/10.1145/1322192.1322205 conf/icmi/2007 db/conf/icmi/icmi2007.html#MorimotoMKIT07