摘要
提出了一种计算图像几何矩的快速算法。根据图像区域边界的顶点链码,给出了图像几何矩的计算公式。该算法可以看作是格林理论的离散版本的一个推广,对低阶几何矩,算法的复杂度为O(n)。与原有的几何矩算法比较,该方法具有实现简单、计算量小、计算结果精确等优点。
An efficient algorithm for geometry moment computation is proposed. According to the vertex chain codes of image boundary, the geometry moment formula of image is given. This algorithm is an extension of the discrete version of greens theorem. The complication of algorithm is 0 (n) for low level geometry moment. Compared with the old algorithms, the algorithm is of easy operation, little computation, and precise result.
出处
《计算机应用与软件》
CSCD
北大核心
2007年第11期172-173,194,共3页
Computer Applications and Software
关键词
像素顶点
顶点链码
几何矩
方向链码
Pixel vertex
Vertex chain code
Geometry moment
Direction chain code