中文说明：
CS压缩传感的初级教学代码，使用OMP重构，已注释，包括1维信号，2维图像的重构，分别使用dct和小波稀疏，列扫描和分块法进行omp重构。
English Description：
CS compressed sensing primary teaching code, using OMP reconstruction, annotated, including 1D signal, 2D image reconstruction, respectively using DCT and wavelet sparse, column scanning and block method for OMP reconstruction.