Implementation of a virtual chat room for multimedia communications. - Yao-Jen Chang; Chih-Chung Chen; Jen-Chung Chou; Yung-Chang Chen (MMSP, 1999)

Virtual Talk: A Model-Based Virtual Phone using a Layered Audio-Visual Integration. - Yao-Jen Chang; Chih-Chung Chen; Jen-Chung Chou; Yung-Chang Chen (IEEE International Conference on Multimedia and Expo (I), 2000)

Facial Feature Point Tracking and Expression Analysis For Virtual Conferencing Systems. - Jen-Chung Chou; Yao-Jen Chang; Yung-Chang Chen (ICME, 2001)