Real-time Measurement System of Cycloduction Movement Based on Fast Ellipse Detection
Real-time Measurement System of Cycloduction Movement Based on Fast Ellipse Detection
复制标题
基于快速椭圆检测的循环运动实时测量系统
DOI：
10.1541/ieejeiss.127.591
复制
发表时间：
2007
影响因子：
--
通讯作者：
Hironobu Fujiyoshi Member
中科院分区：
文献类型：
--
作者：
Yusuke Sakashita;Hironobu Fujiyoshi Member
This paper presents a method for real-time cycloduction measurement based on fast ellipse detection. The Hough transform frame work is known to be effective for ellipse fit-ting, but most of existing methods need a high computation cost. We therefore present a novel technique for detecting a region of the pupil by fitting an ellipse based on parallelo-gram. Since our method eliminates outliers due to lighting, it is possible to obtain the ellipse parameters in high accuracy. Once the ellipse parameter for pupil image is detected, we can generate a projected image of iris pattern, and then estimate a rotation angle of the cycloduction by SAD matching considering the temporal information. Our experimental results demonstrate the effectiveness and robustness of our method. The ellipse detection procedure is shown as follows;
