基于改进模型的坐标转换精度分析

Accuracy Analysis of Coordinate Conversion Based on Improved Model

针对二次曲面模型和正形变换模型存在计算方面的问题,对模型进行了相应的改进即以重心化后的坐标代替二次型曲面中的坐标,并以一组实例数据,分析了转换模型和公共点精度两方面因素对转换精度的影响。实验表明,改进后的二次曲面模型和正形变换模型具有较高的转换精度。

Aiming at quadratic surface model and the conformal transformation model calculation aspects o! the prob- lem, this article puts forward the model corresponding improvement that the coordinates of centralized to barycenter, in- stead of the quadratic surface coordinates, and through a set of instances of data, analysis and discussion of the transfor- mation model the accuracy of the two factors and public point conversion accuracy. The experiments show that the im- proved quadratic surface model and a conformal transformation model have higher conversion accuracy.