新的空间物点定位解算方法

A New Method of Three-Dimensional Target Point Location

目前近景摄影测量学空间物点定位主要应用的是空间点线线交会原理,其数学基本形式有两种:共线方程交会法和投影矩阵交会法。针对近景摄影测量学空间物点定位原理,在共线方程交会法的基础上,提出了一种新的空间物点定位解算方法。该方法应用多元函数极值定理和克莱姆法则对空间线线交会问题进行求解,给出了详细的运算过程。实验证明了该算法的准确性。

At present, the principle of two-line intersection is widely used in close shot photogrammetry, whose mathematical basic style is composed of collinear equation intersection method and projection matrix intersection method. Aiming to the principle of dimensional target point location in close shot photogrammetry, a new kind of calculational method of dimensional target point location is put forward based upon collinear equation intersection method. It uses multipleunit function extremum principle and Cramer theorem to solve the problem of dimensional target point intersection. The detailed calculation process is introduced. The test shows the veracity of this algorithm.