一种基于多文档得图像合并技术，包括最小二乘法、SVM、神经网络、1_k近邻法,利用最小二乘法进行拟合多元非线性方程。- Based on multi-document image obtained combining technique, Including the least squares method, the SVM, neural networks, 1 _k neighbor method, Multivariate least squares fitting method of nonlinear equations.