摘要
提出了在彩色环境下检测椭圆的新算法。首先分析了椭圆的解析结构,根据物理学中惯性矩的概念,推演出一个类椭圆区域的理想椭圆,用该理想椭圆与边缘检测获得的边缘点拟合,求出一个区域的理想椭圆;然后将求得的理想椭圆与区域边缘点集合用近似度和逼近度两个指标拟合,得到与类椭圆区域最匹配的精确椭圆;最终得到类椭圆区域的边界轮廓,该轮廓可以很好地代替目标的真正边界。该算法可以快速检测完整椭圆和椭圆弧。
A new algorithm on Ellipse detection in color image was proposed in this paper.Firstly the geometry of ellipse was analyzed in this paper.Then an ideal ellipse of a similar ellipse region can reason out by the help of the concept of inertial square.This algorithm decreased computation greatly.If the center of an ellipse can work out,an ideal ellipse of a region can be figured out soon.After getting the ideal ellipse,by fitting the edge of the region to the ideal ellipse,whether the region is an ellipse region will be verified.The algorithm can be well applied to ellipse detection.
出处
《西南科技大学学报》
CAS
2010年第4期87-90,共4页
Journal of Southwest University of Science and Technology
