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Description: 一种最新型的压缩算法，即压缩感知（compressive sensing）的介绍文档，深入迁出，对于理解CS这一个新思想有很大的帮助-The latest model of a compression algorithm, that is, perceptual compression (compressive sensing) Introduction of the document in depth to move out, for understanding the CS has a lot of new ideas to help
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Author: kevinkou |
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Description: 压缩传感是一个从2006年左右开始兴起的研究领域，它关注于如何采样信号，也就是信号的采样方式或者压缩方式。通过设计一种特殊的采样方案，可以使得采样频率降低为信号的“信息率”，而不是传统的奈奎斯特采样率，于是，实际的采样率可以大大低于奈奎斯特频率，却只损失很少的信息量，依然保持了充足的信息量足以恢复出采样前的原始信号。这个研究思想挑战了奈奎斯特频率的理论极限，会对整个信号处理领域产生极其深远的影响，同时，信号处理的许多应用领域也会随之发生根本性的发展和变化。
-Compressive sensing (CS) is an emerging fi eld based on the revelation that a small
collection of linear projections of a sparse signal contains enough information for sta-
ble, sub-Nyquist signal acquisition. When a statistical characterization of the signal
is available, Bayesian inference can complement conventional CS methods based on
linear programming or greedy algorithms. We perform approximate Bayesian infer-
ence using belief propagation (BP) decoding, which represents the CS encoding matrix
as a graphical model. Fast encoding and decoding is provided using sparse encoding
matrices, which also improve BP convergence by reducing the presence of loops in
the graph. To decode a length-N signal containing K large coeffi cients, our CS-BP
decoding algorithm uses O(K log(N)) measurements and O(N log2
(N)) computation.
Finally, sparse encoding matrices and the CS-BP decoding algorithm can be modifi ed
to support a variety of signal models and measurement noi
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Size: 239616 |
Author: romman |
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Description: CS仿真程序,效果很不错，请大家下载。本站的源码对我太有用了，-CS simulation program, the effect is very good, please download. The source of the site really useful for me,. . .
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Size: 10493952 |
Author: sunny |
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Description: 基于压缩感知中DCT基的BP算法，用基追踪算法重构原始信号-Perception-based compression algorithm for DCT based BP, with the basis pursuit algorithm to reconstruct the original signal
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Size: 1024 |
Author: 张健 |
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Description: 基于压缩传感理论和BP神经网络的数字图像压缩的一篇论文-a paper on compression based in BP and CS
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Size: 160768 |
Author: 赵壮 |
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Description: 图像压缩重构算法中的BP算法程序，可以运行-CS BP agritourism
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Size: 3072 |
Author: 俞海寅 |
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Description: 一帧语音+CS(MP,BP OMP)重构算法包括读取分帧重构计算 误差分析-A voice+CS (MP, BP OMP) reconstruction algorithm consists of reading framing error analysis reconfigurable computing
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Size: 5120 |
Author: hj |
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Description: 压缩感知重构经典算法-BP算法，试用效果不错相对于OMP好很多，但重构时间较长-compressed sensing；BP algorithm；compressive sensing
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Size: 2048 |
Author: huhu |
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Description: 压缩感知的各种经典还原算法，BP,OMP，CoSaMP，LP等等。-Compressed sensing a variety of classical reduction algorithm, BP, OMP, CoSaMP, LP and more.
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Size: 72704 |
Author: 张春磊 |
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Description: 里面包含压缩感知的各种恢复算法，比如BP,GaBP,OMP,对初学cs的同学比较有帮助-Which contains a variety of compressed sensing recovery algorithms, such as BP, GaBP, OMP, for beginners cs students more help
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Size: 14465024 |
Author: wuchuanfeng |
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Description: 压缩感知BP算法（basis pursuit algorithm）-basis pursuit algorithm
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Size: 3072 |
Author: 女王大人 |
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Description: 最全的cs重构算法matlab代码及其参考文献，包括BP，COSAMP, Cotourlet, CURVELET, DWT, GPSR, Grouplet, MP, OMP, ROMP, SP, StOMP等-Contain almost all the algorithm of Compressed Sensing（CS）:COSAMP, Cotourlet, CURVELET, DWT, GPSR, Grouplet, MP, OMP, ROMP, SP, StOMP and so on
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Size: 16343040 |
Author: 叶兆瑜 |
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Description: 这是写的压缩感知的几种算法，包括BP,MP,OMP,ROMP几种算法，算法的恢复包括使用一维信号和lena图片，希望对你们有帮助-It is written in the compressed sensing of several algorithms, including the restoration of BP, MP, OMP, ROMP several algorithms, algorithms including the use of a one-dimensional signal and lena pictures, I hope to help you
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Size: 1391616 |
Author: 庞 |
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Description: 压缩感知重构算法的MATLAB程序。比较了StOMP算法、OMP算法和BP算法。-MATLAB code of Compressed sensing reconstruction algorithm. StOMP algorithm, OMP algorithm and BP algorithm are compared.
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Size: 164864 |
Author: Zlh |
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Description: 用布谷鸟优化法对BP神经网络的权值和阈值进行优化，提高神经网络运行精度。-Cuckoo optimization method of BP neural network weights and threshold optimization, improve precision of the neural network operation.
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Size: 9216 |
Author: 王博 |
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Description: 布谷鸟与BP神经网络的结合 预测 预测效果很好 只需要换数据 就可以使用
-The cuckoo and the BP neural network combination forecast forecast effect is very good just need to change the data can be used
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Size: 72704 |
Author: 恒之毅的天空 |
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Description: 布谷鸟与BP的结合，可以运行出来，只改一下数据即可。-the cuckoo and the combination of BP, you can run out, only changed data.
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Size: 269312 |
Author: 恒之毅的天空 |
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Description: 压缩感知matlab代码，用于图像压缩回复，成功运行，里面有各种CS程序，bp，omp，somp都有，能成功运行！-Compressed sensing matlab code, reply is used for image compression, run successfully, there are all kinds of CS program, bp, omp, somp all have, can run successfully!
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Size: 122880 |
Author: 拭目以待 |
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Description: CS BP算法的matlab实现程序，结构清晰，注释完整(CS BP algorithm matlab implementation procedures, clear structure, complete notes)
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Size: 20957184 |
Author: comic97
|
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Description: 除匹配追踪类贪婪迭代算法之外，压缩感知重构算法另一大类就是凸优化算法或最优化逼近方法，这类方法通过将非凸问题转化为凸问题求解找到信号的逼近，其中最常用的方法就是基追踪(Basis Pursuit, BP)，该方法提出使用l1范数替代l0范数来解决最优化问题，以便使用线性规划方法来求解(In addition to match-tracking greedy iterative algorithms, another major category of compressed-perceptual reconstruction algorithms is the convex optimization algorithm or the optimization approximation method. This type of method finds the signal approximation by converting the nonconvex problem into a convex problem. The method is base tracking (Basis Pursuit, BP). This method proposes to use the l1 norm instead of the l0 norm to solve the optimization problem in order to use the linear programming method to solve the problem)
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Size: 730112 |
Author: jiaxiaoxiao |
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