中文说明：结合PCA的尺度不变特征变换(SIFT)算法，是本科毕设的题目，欢迎大家下载学习，PLS部分最小二乘工具箱,是一种双隐层反向传播神经网络，主要为数据分析和统计。
English Description：
Combined with PCA scale invariant feature transform (SIFT), undergraduate graduation design topic, welcome everyone to download to learn, pls pls toolbox, is a double hidden layer backpropagation neural network, mainly for data analysis and statistics.