期刊名称：International Journal of Signal Processing, Image Processing and Pattern Recognition
印刷版ISSN：2005-4254
出版年度：2013
卷号：6
期号：2
出版社：SERSC
摘要：A new method for head posture and gaze direction estimation is proposed. Firstly, three models of head position are established and postures are judged based on triangle attribute constituted by eyes and mouth. Then pupil is located using Hough transform in eye area. With the method of horizontal and vertical projection and eye prior knowledge, the normal eye outline is fitted. Finally, gaze direction is estimated according to the position of pupil in normal state eye and head posture. The experimental results demonstrate the proposed method can accurately detect head posture and gaze direction. For considering head posture, the method has more accuracy in gaze estimation.
关键词：gaze estimation; head posture; pupil; Hough transform; gray projection
