压缩传感，MATLAB，图像重建，正交匹配追踪，打破乃奎斯特定理，图像分块处理-Compressed sensing, MATLAB, image reconstruction, orthogonal matching pursuit, breaking the Nyquist theorem, the image block processing

可用于降噪，压缩传感等，迭代阈值求解最优解，-Can be used for noise reduction, compression sensing and iterative threshold to solve the optimal solution