本文提出了一种基于方向可变滤波器的改进Hough变换方法。该方法首先利用方向可变滤波器检测出图像边缘和边缘的方向特性，然后后基于边缘点及其方向，通过改进的Hough变换得到圆心、半径。最后，将该算法应用于球类对象分割并得到较好的结果。 已通过测试。

-In this paper, based on the direction of the variable filter improved Hough transform method. First, using the direction variable filter to detect the directional characteristics of the image edge and the edge, and then based on the edge of the point and its direction after center, radius through improved Hough transform. Finally, the application of the algorithm the ball object segmentation and better results. Has passed the test.