利用Hough变换实现直线的快速精确检测　利用Hough变换对直线进行检测,通常存在“速度缓慢、结果不够精确”的问题,确检测成为可能。-Using Hough transform line detection using Hough transform fast and accurate detection of a straight line, usually there is " slow, the result is not precise enough"　issue, this paper presents a " fractional look-up table,"　Hough transform can significantly reduce the total calculate the amount of cases, to maintain the highest detection accuracy, allowing very large images, straight line, real-time, accurate detection is possible.