运用Hough 变换提高直线检测效率

针对hough变换检测直线段中的运算速度慢、占用内存多的问题,提出一种改进的检测直线段的方法。首先,对图像进行减半采样处理,采用从大概到精确的检测策略,减小运算量;其次采用soble算子进行边缘检测;最后,在经典的hough变换的方法上增加了边缘梯度幅度进行限制,减小了坐标转换的次数,并将断开的同一直线上的线段连接起来。

Improve Efficiency of Line Detection Using Hough Transform

Because of the slow detection speed and occupying big system memory for lmes in dlgltlal Images, a new improved detection method was proposed. Firstly, sampling in half was used to extract process the image, adopted the strategy that from probably to accurate tese, reduce the computational complexity.Then, the soble operator was proceeded on edge detection. Finally, increased the edge gradient on the classical hough transform to reduce the number of coordinate transformation, and joined up the disconnected line.