包括最小二乘法、SVM、神经网络、1_k近邻法,实现用SDRAM运行nios，同时用SRAM保存摄像头数据，基于分段非线性权重值的Pso算法。- Including the least squares method, the SVM, neural networks, 1 _k neighbor method, Implemented with SDRAM run nios, while saving camera data SRAM, Based on piecewise nonlinear weight value Pso algorithm.