Hao's TechBlog

At the beginning, I'd like to make clear two terms: "Nyquist frequency" and "Nyquist rate". Some of you may take ...

Last article, I briefly introduce existing cs method on image. This article aims to summary how block cs worked on image. Before I go on...

CS最初由[1][2][3]提出。[1, 2]没有看，[3]中理论推导比较多。我建议读[4]作为入门。 最初的CS理论只提出了noiseless的情况下，可以accurately recover compressible signal，注意是需要compressible sig...

The DCT usually use 8x8 as the block size to be applied to images. This is a trade-off between computational complexity, compression speed a...