Nobuyuki Matsushita Daisuke Hihara Teruyuki Ushiro Shinichi Yoshimura Jun Rekimoto Yoshikazu Yamamoto ID CAM: A Smart Camera for Scene Capturing and ID Recognition. 227-236 2003 conf/ismar/2003 ISMAR http://csdl.computer.org/comp/proceedings/ismar/2003/2006/00/20060227abs.htm db/conf/ismar/ismar2003.html#MatsushitaHUYRY03