Edge Subpixel Location of Ellipse in Computer Vision Measurement

摘要：

Ellipse is the important element in the computer vision measurement A spatial moment operator with three gray model is researched. First the LOG operator is used to locate the edge at the level of pixel quickly, and then the spatial moment is used to detect subpixel location of the discrete points of edge. The least square fitting is adopted to fit the ellipses subpixel edge points which have been detected by Hough transform.The validity and precision of spatial moment subpixel edge detection and the detection of ellipse on image plane is studied. The experiments show that spatial moment subpixel edge detection and the detection of ellips on image plane have acquired high precision stability.

关键词： Edge detection Ellipse exstract Spatial moment Hough transform Least square fitting

作者: Li Baozhang Cui Yanping

作者单位: School of Mechanical and Electronic Engineering Hebei University of Science and Technology,Shijiazhuang, China

会议类型: 国际会议

会议名称: 2011 3rd International Conference on Advanced Computer Control(2011年IEEE第三届高端计算机控制国际会议 ICACC2011)

会议地点: 哈尔滨

会议语种:英文

页码: 452-456

在线出版日期: 2011-01-18（万方平台首次上网日期，不代表论文的发表时间）