Design and Implementation of a Card Reader based on Build-in Camera. - Xi-Ping Luo; Jun Li; Li-Xin Zhen (ICPR (1), 2004)

Camera based mixed-lingual card reader for mobile device. - Xi-Ping Luo; Li-Xin Zhen; Gang Peng; Jun Li; Bai-Hua Xiao (ICDAR, 2005)