Hough变换最先是由Paul Hough在1962年提出的， 它所实现的是一种从图像空间到参数空间的映射关系,其主要优点就是检测几何形状的能力较少受到几何形状中间断点的干扰 ， 而且不需要预先组合或连接边缘点， 可以广泛应用于纤维、 孔径等自动检测中-Hough transform is the first by Paul Hough in 1962, and it is a realization from the image space to parameter space of the mapping relations, and its main advantages is the ability to detect smaller geometry by the geometric shape of the interference among the breakpoint, and do not need to pre-mix or to connect the edge points, can be widely used in fiber, such as automatic detection in the aperture