Special Issue Imaing Processing-Algorithm and System. Treatment of Luminance/Chrominance and Motion Information Applied to 3-D Model-based Coding of Moving Facial Images.
Masahide Kaneko, Atsushi Koike, Yoshinori Hatori · The Journal of The Institute of Image Information and Television Engineers · 1991
In model-based coding of moving facial images, a 3-D-shape model of a head is prepared on both the transmitting and the receiving sides.The coding process is carried out by transmitting shape change and motion information for this shape model."Luminance/chrominance" and "motion" information is two kinds of basic information treated in this coding method.This paper describes useful methods to represent "luminance/chrominance" and "motion" information so that it can be treated without restrictions on a specific shape model or input images.For "luminance/chrominance" information in each triangle composing the 3-D-shape model, the value is represented by 153 triangular lattice points.For "motion", the detected shape change of each object is represented by object-dependent parameters and motion parameters.Experimental results show the effectiveness of the proposed methods.1.