关于特征提取的文章和代码，基于稀疏化的主成分分析法的，还没运行过，应该不错，共享-Articles and code feature extraction method based on principal component analysis sparse, not run, it should be good, sharing

omp算法，一个稀疏编码算法的代码。使用matlab编程。-omp algorithm, a sparse coding algorithm code.

本人自己编写的稀疏表示的SVD算法代码，简单可靠，运行效率高。-SVD algorithm code I have written a sparse representation, simple and reliable, high operating efficiency.