关键词: 非规则曲线, 匹配, 角点

Abstract: On the base of analyzing geometrical character of planar curve，an algorithm based on curvature etc. invariant is presented which is about planar irregular curve matching.In this method，look for beginning matching points by extracting corner points of planar irregular curve and matching corner points，at the same time make use of geometrical character that corresponding points have the same curvatures or equivalent geometrical character to perform irregular curves matching.And theory and experiment prove that this algorithm is feasible.

Key words: irregular curve, match, corner points