摘要
角点检测是计算机视觉处理的首要步骤 ,本文提出一种平面曲线角点检测的方法。首先 ,从人类视觉感知出发 ,给出角点两个重要性质作为对传统角点性质的补充 ,基于上述两个性质 ,模糊集合的概念被引入到检测问题。然后 ,给出三组包含角点隶属度的特征提取公式 ,综合三组特征 ,给出角点检测、定位、优选的判据。文中最后给出算例检测结果和感兴趣部分的特征曲线 ,以及对历史文献测试图像的检测结果。结果表明 ,本文算法使用模糊集合理论 ,在实现上非常简单 。
Corner detection is a chief step in computer vision. A new corner detection algorithm in planar curves is proposed. Firstly, from the human perception, two key characteristics are given as an amendment of the traditional corner properties. Based on the two properties, the concept of the fuzzy set is introduced into a detection. Secondly, the extracted-formulae of three groups including the features of the corner subject degree are derived. Through synthesizing the features of three groups, the judgments of the corner detection, location, and optimization are obtained. Finally, by using the algorithm the detection results of several examples and feature curves for some interested parts, as well as the detection results for the test images history in references are given. Results show that the algorithm is easily realized after adopting the fuzzy set, and the detection effect is very ideal.
