包括广义互相关函数GCC时延估计，基于互功率谱的时延估计，LDPC码的完整的编译码，是一种双隐层反向传播神经网络，表示出两帧图像间各个像素点的相对情况。- Including the generalized cross-correlation function GCC time delay estimation, Based on the time delay estimation of power spectrum, Complete codec LDPC code, Is a two hidden layer back propagation neural network, Between two images showing the relative circumstances of each pixel.