本次设计在圆检测中的HOUGH变换前增加预处理过程。结果表明，使用我们提出的算法仍能基本保留传统HOUGH变换的优点，并且对图像场景中的干扰不敏感,在圆周残缺不全的情况下仍能进行正确检测.-The circular design in the detection of pre-treatment before the HOUGH transform process. The results show that our proposed algorithm can still retain the basic advantages of the traditional HOUGH transform, and the image scene is not sensitive to interference, in the case of incomplete circle still correctly detected.