標題: | Determination of head pose and facial expression from a single perspective view by successive scaled orthographic approximations |
作者: | Chang, CC Tsai, WH 資訊工程學系 Department of Computer Science |
關鍵字: | head pose;facial expressions;scaled orthographic projection.;human-computer interaction |
公開日期: | 1-二月-2002 |
摘要: | Human faces are the main organs for expressing human emotion. In this study, anew iterative approach to analyzing the head pose and the facial expression of a human face from a single image is proposed. The proposed approach extends the concept of successive scaled orthographic approximations. which was used to estimate the pose of a rigid object, to develop a method to estimate the parameters for a non-rigid object, namely, a human face. The implementation of the proposed method is simple; furthermore, no initial guess is required. The convergency property of the proposed method is also analyzed theoretically and experimentally. Experimental results show that the proposed method is robust and has a high percentage of convergency, and thus prove the feasibility of the proposed approach. |
URI: | http://dx.doi.org/10.1023/A:1014022522159 http://hdl.handle.net/11536/29025 |
ISSN: | 0920-5691 |
DOI: | 10.1023/A:1014022522159 |
期刊: | INTERNATIONAL JOURNAL OF COMPUTER VISION |
Volume: | 46 |
Issue: | 3 |
起始頁: | 179 |
結束頁: | 199 |
顯示於類別: | 期刊論文 |