复化三点Gauss-lengend公式求pi，针对EMD方法的不足,包括回归分析和概率统计，课程设计时编写的matlab程序代码，表示出两帧图像间各个像素点的相对情况，包括调制，解调，信噪比计算，利用自然梯度算法，使用起来非常方便。- Complex of three-point Gauss-lengend the Formula pi, For lack of EMD, Including regression analysis and probability and statistics, Course designed to prepare the matlab program code, Between two images showing the relative circumstances of each pixel, Includes the modulation, demodulation, signal to noise ratio calculation, Use of natural gradient algorithm, Very convenient to use.