基于压缩感知的鲁棒压缩

L. M. Merino, L. Mendoza
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引用次数: 0

摘要

这项工作介绍了一种新的信号和图像鲁棒压缩技术,称为压缩感知(CS)。它是一种新的先进的技术,可以从少量随机采集的样本中重建稀疏信号,从而避免了奈奎斯特准则。用少量数据重建信号是一项艰巨的任务,它是一个线性优化过程,有多种方法可以找到解。CS是目前广泛用于研究的一种有用的采样/压缩工具,只适用于稀疏信号,并且我们可以在某些信号和图像中实现CS,但需要根据几个有意义的术语“重写”它,这些术语可以通过时间/频率/能量等属性来获得。导数、余弦离散变换(DCT)、傅立叶和小波分析是对信号和图像进行稀疏变换的一些工具。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Robust compression using Compressive Sensing (CS)
This work introduces a new technique of robust compression on signals and images, known as Compressive Sensing (CS). It is a new and advanced technique which can reconstruct sparse signals from a few random acquired samples, achieved to avoid the Nyquist's criteria. Reconstruction of a signal with just few data is a hard task converted in a lineal optimization process with various ways to find out the solution. Widely-used for research at present, CS is a useful tool of sampling/compression that only works with sparse signals, moreover we were able to implement CS in some kind of signals and images, but it is necessary to "rewrite it" according to a few meaningful terms, which can be obtained using properties time/frequency/energy, etc. The derived, cosine discrete transform (DCT), Fourier and Wavelet analysis are some of the tools to sparse convertion of signals and images.
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