LM算法 老外写的The Levenberg-Marquardt (LM) algorithm is the most widely used optimization algorithm. It outperforms simple gradient descent and other conjugate gradient methods in a wide variety of problems. This document aims to provide an intuitiv

：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