Research on a Systematic Analysis Method on Individual Identification and Facial Expression Analysis Using Three-dimensional Facial Images

Furthermore, by using the face plane we propose a new method that corrects inclinations of a facial attitude in a three-dimensional facial image. Such a method is very important as pre-processing in facial expression analysis or individual identification. Our method does not need to recognize facial parts such as eyes, a nose or a mouth in advance. In the experiment on correcting inclinations of a facial attitude, we compare the proposed coordinate system with an ordinary coordinate system obtained by using facial parts, and it is shown that our coordinate system is more effective than the ordinary coordinate system. In the experiment on recognizing a facial expression change, it is shown that our coordinate system is more effective too as pre-processing of a facial expression recognition system than the camera coordinate system.