Automatic Intruder Detection and Tracking System with Pan-Tilt-Zoom Camera. - Tetsuji Haga; Hideto Fujiwara; Kazuhiko Sumi (MVA, 2000)

A robust background subtraction method for changing background. - Makito Seki; Hideto Fujiwara; Kazuhiko Sumi (WACV, 2000)

Background Subtraction based on Cooccurrence of Image Variations. - Makito Seki; Toshikazu Wada; Hideto Fujiwara; Kazuhiko Sumi (CVPR (2), 2003)

Fingerprint Image Enhancement using a Parallel Ridge Filter. - Takahiro Nakamura; Miwako Hirooka; Hideto Fujiwara; Kazuhiko Sumi (ICPR (1), 2004)