Method for Circle Detection Using Geometric Feature Parameters
LI Jin-zong · Jisuanji gongcheng · 2007
A circle detection method using a group of geometric feature parameters is proposed.Polygon fitting to the extracted edges is implemented and the fitted polygons are normalized to obtain invariant geometric features to translation,rotation,and scale change.The parameters corresponding to the geometric features are calculated.Those shapes with the geometric feature parameters satisfying certain conditions are recognized as circles.The algorithm is described,and comparison experiments with the randomized hough transformation are made.The experimental results on synthetic and real images show that the proposed method is efficient and practical.