摘要
提出了一种简单的椭圆检测方法.首先,利用椭圆中心对称找到椭圆的中心坐标,根据中心坐标将检测到的边缘点划分为若干个子集;然后,将各个子集进行归一化处理;最后利用RANSAC方法从各个子集中鲁棒地拟合出椭圆,并将拟合出的椭圆解除归一化.实验结果验证了该方法的有效性.
A simple method for ellipse detection is proposed.Firstly it locates ellipse center candidates using center symmetry of ellipses,and the detected edge points are grouped into several subsets according to the center candidates.Then each subset is normalized.Finally,all the ellipses are fitted by performing RANSAC for each subset,and the estimated ellipses are demoralized.Experiments validate the proposed method.
出处
《北京服装学院学报（自然科学版）》
CAS
2012年第4期74-78,共5页
Journal of Beijing Institute of Fashion Technology：Natural Science Edition
基金
北京市属高等学校人才强教计划项目资助(PHR201008282)
关键词
椭圆检测
RANSAC
归一化
ellipse detection
random sample consensus
normalization
