Analysis and synthesis of facial expressions in knowledge-based coding of facial image sequences. - Chang Seok Choi; Hiroshi Harashima; Tsuyosi Takebe (ICASSP, 1991)

Analysis of facial expressions using a three-dimensional facial model. - Chang Seok Choi; Tsuyoshi Takebe; Hiroshi Harashima (Syst. Comput. Jpn., 1992)

Analysis and synthesis of facial image sequences in model-based image coding. - Chang Seok Choi; Kiyoharu Aizawa; Hiroshi Harashima; Tsuyoshi Takebe (IEEE Trans. Circuits Syst. Video Technol., 1994)

Basis generation and description of facial images using principal-component analysis. - Akinori Nagata; Toru Okazaki; Chang Seok Choi; Hiroshi Harashima (Syst. Comput. Jpn., 1997)