基于形状信息的三角形交通标志检测方法

提出一种基于快速辐射对称性和Hough变换的三角形交通标志检测方法。利用快速辐射对称性检测三角形的内心，在内心处设置一个窗口对窗口内图像作Hough变换，在图像的Hough域中检测三角形交通标志。实验结果表明，该算法能有效弥补现有同类算法的缺陷，具有较高的检测效率。

Triangle Traffic Sign Detection Approach Based on Shape Information

A new method based on edge information is proposed. It studies the use of fast symmetry and Hough transform in detection of the triangle traffic sign. The inner circle point of the triangle is detected by fast radial symmetry, and a specified window is used to compute the Hough transform of the small regions of the image. A triangle is detected in Hough filed. Experimental result shows that the algorithm makes up for the shortcomings of existing algorithms and has higher detection efficiency.