：针对常用坐标转换定位算法精确度和效率较低的问题，提出一种基于透视变换原理的定位算法。根据4 个初始定位点的坐标信息，

确定反映点与点之间空间映射关系的单应性矩阵。定位完成后，利用该矩阵进行简单运算即可完成坐标转换。实验结果证明该方法稳定性

较高。-Positioning algorithm for common coordinate conversion accuracy and low efficiency problem, a perspective transformation based on the principle of localization algorithm. According to four initial anchor point coordinate information,

Determining reflect spatial mapping between points homography relationship. After positioning, the use of a simple calculation of the matrix to complete the coordinate transformation. Experimental results show that the method stability

Higher.