结合PCA的尺度不变特征变换(SIFT)算法，验证可用，借鉴了主成分分析算法（PCA），包括脚本文件和函数文件形式，随机调制信号下的模拟ppm，数学方法是部分子空间法，代码里有很完整的注释和解释，是小学期课程设计的题目。-Combined with PCA scale invariant feature transform (SIFT) algorithm, Verification is available, It draws on principal component analysis algorithm (PCA), Including scr ipt files and function files in the form, Random ppm modulated analog signal under Mathematics is part of the subspace, Code, there are very complete notes and explanations Is the topic of the elementary school stage curriculum design.