Robust face detection for human interactive mobile robot. - Ken-ichi Hidai; Tomohiko Kanamori; Hiroshi Mizoguchi; Kazuyuki Hiraoka; Masaru Tanaka; Takaomi Shigehara; Taketoshi Mishima (Mobile Robots / Telemanipulator and Telepresence Technologies, 2000)

Implementation of invisible messenger system to whisper in a person's ear remotely by integrating visual face tracking and speaker array. - Hiroshi Mizoguchi; Tomohiko Kanamori; Satoshi Kagami; Kazuyuki Hiraoka; Masaru Tanaka; Takaomi Shigehara; Taketoshi Mishima (SMC, 2002)