中文说明：应用背景压缩感知是近些年来发展起来的新理论，他解决了很多不能解决的问题，现在它主要应用在去噪，图像重构，模式识别等技术，而且现在莱斯大学已经发明了基于压缩感知的照相机，它的发展前景非常光明。关键技术压缩感知重构方法有匹配追踪，正交匹配追踪，梯度投影法等技术，这些技术都能很好的将图像重构，现在使用的最广泛的也是相对其他方法最好用的是正交匹配追踪方法
English Description：
Application backgroundCompressed sensing is a new theory developed in recent years, he has solved many can not solve the problem, now it is mainly used in denoising, image reconstruction and pattern recognition technology, and now Rice University has invented based on compressed sensing camera, before its development view is very bright.Key TechnologyCompressed sensing reconstruction method with matching pursuit, orthogonal matching pursuit, gradient projection method and technology, these technologies can very good reconstructed image, now use the most extensive is compared with other methods, it is best to use is orthogonal matching pursuit method