基于曲率曲线的图形匹配研究Research on grach

作为自由曲线在图像区域边缘描述的应用，本文把区域边界用这种自由曲线描述，并且通过描述曲线的曲率曲线，得到曲线的唯一性描述，从而作为曲线围绕区域的特征，对区域的辨识也就转为对特征的判断。这种方法涉及到的数据量少，特征明确，有移不变性以及旋转平移不变性，即使放大缩小也可以判断，在图形辨识方面有广泛的应用价值。经过编程，结果很有效。
关键词：曲率曲线；边缘检测；图形匹配

Abstract：As the application of free curve in the district edge of images, this paper described the district edge with this kind of free curve. By describing the curvature curve, We get the unique describe, then recognizing of district is turned into judgment of characteristic as characteristic of surrounding the district. This method involves little measure, the characteristic is clear, there is the unchanged characteristic in moving and revolving. Because zooming can be judged there is the extensive application value in imaging’s recognizing. The result of program working is very valid.
Keywords：Curvature curve；Edge detection；Graph matching