Search - Compressive Sampling

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[matlab] TVL1_HCS_v1 DL : 0: % May 2010 % This matlab code implements TVL1 based Hybrid Compressive Sensing using LSQR. % Only suitable the small scale data due to the costly storage and computation. % % A - M x N measurement matrix: random sampling alone or hybrid sampling (random sampling and low resolution sampling) % % gamma - weight for L1-norm of the diagonal gradients % % tol - tolerance for stopping criterion. % - DEFAULT 1e-3 if omitted. % % maxIter - maximum number of iterations % - DEFAULT 50, if omitted. %Original TVL1 based Hybrid Compressive Sensing problem: % min ||gx ||_1 + ||gy ||_1 +\gamma *(||gxy ||_1 + ||gyx ||_1) % s.t. A*I = b and I >=0 %It can be solved using PDCO as follows % min c*x s.t. Phi * x =B % x = [I; gx; -gx; gy; -gy; gxy; -gxy; gyx; -gyx] % Phi and B enforce the measurement (A) and constrant among the elements of x; % Xianbiao Shu, May 2010. Questions? xshu2@uiuc.edu; % Copyright: Computer Vision and Robotics Lab, University of Illinois, Urbana-Champaign % Acknowledgement: Primal-Dual interior method for Convex Objectives (PDCO) % http://www.stanford.edu/group/SOL/software/pdco.html
Date : 2011-04-21 Size : 895.62kb User : li123kai@126.com
[matlab] CS DL : 0: L1-MAGIC is a collection of MATLAB routines for solving the convex optimization programs central to compressive sampling. The algorithms are based on standard interior-point methods, and are suitable for large-scale problems
Date : 2025-12-30 Size : 723kb User : thao
[matlab] 3867change DL : 0: compressive sampling algorithms for image
Date : 2025-12-30 Size : 2kb User : ravishankar
[matlab] TVL1_HCS_v1 DL : 0: TVL1重建从混合压缩采样，rice大学泊松分布图像重建与全变分正规化的代码-Note: (1)Fore small-scale data, hybrid sampling consists of Bernoulli random sampling and low-resolution sampling (TVL1_HCS) (1)Fore large-scale data, hybrid sampling consists of Fourier radial sampling and low-frequency sampling (TV_RecPF) Copyright (C) 2010 Xianbiao Shu, Computer Vision and Robotics Lab, University of Illinois at Urbana-Champaign. Acknowledgement: RecPF (Rice University) PDCO (Stanford University) Twister (MIT) Reference: X. Shu, N. Ahuja, Hybrid Compressive Sampling via a New Total Variation TVL1, In Proceedings of ECCV 2010. Usage: >> run_me_first >>[Im_rec, PSNR_est1,PSNR_est2] = TVL1L2_HCS_test( Ball1_32.bmp , 0.35,3) >>[Im_rec, PSNR_est1,PSNR_est2] = TVL1L2_HCS_test( Ball1_32.bmp , 0.35,3) >>[Im_rec, PSNR1, PSNR2, G_error, Ratio] = TV_RecPF_test( Chest.png , 5, 10, 0, 1e-10, 0)
Date : 2025-12-30 Size : 896kb User : liuyaxin
[matlab] Compressive-Sensing DL : 0: 压缩感知简介,包括压缩感知具体实现过程，最基本的原理说明-compressive sampling
Date : 2025-12-30 Size : 462kb User : wang
[matlab] cosamp DL : 0: Compressive Sampling Matching Pursuit
Date : 2025-12-30 Size : 1kb User : Cw
[matlab] ComSam DL : 0: Compressive Sampling是最近讨论非常热烈的数据处理方法。用一个与变换基不相关的观测矩阵将变换所得到的高维信号投影到一个低维空间上，然后通过优化求解从这些少量的投影中以高概率重构出原信号。-Compressive Sampling is a very lively discussion of recent data processing method. A base with the transformation matrix will not change the relevant observation obtained a high-dimensional signal projected onto low-dimensional space, and then solved by optimizing the projection from these small reconstructed with high probability in the original signal.
Date : 2025-12-30 Size : 3kb User : 奥利弗
[matlab] algorithm_890 DL : 0: 压缩感知方面的源代码，采用matlab编写-Compressive Sampling matlab
Date : 2025-12-30 Size : 3.7mb User : robot
[matlab] CS DL : 0: 压缩感知（Compressive Sensing(CS)，或称Compressed Sensing、Compressed Sampling）。该理论指出：对可压缩的信号可通过远低于Nyquist标准的方式进行采样数据，仍能够精确地恢复出原始信号。该理论一经提出，就在信息论、信号/图像处理、医疗成像、模式识别、地质勘探、光学/雷达成像、无线通信等领域受到高度关注，并被美国科技评论评为2007年度十大科技进展。-Compressed Sensing (Compressive Sensing (CS), known as Compressed Sensing, Compressed Sampling). The theory states: compressible signal can be much lower than the Nyquist criterion for sampling data, and still be able to accurately recover the original signal. The theory was put forth, to receive significant attention in the field of information theory, signal/image processing, medical imaging, pattern recognition, geological exploration, optical/radar imaging, wireless communications, and Technology Review named the 2007 top ten scientific and technological progress.
Date : 2025-12-30 Size : 31.27mb User : 刘海涛
[matlab] paper2 DL : 0: Single-pixel imaging via compressive sampling.pdf
Date : 2025-12-30 Size : 1.2mb User : li
[matlab] paper3 DL : 0: Sparsity and incoherence in compressive sampling.pdf
Date : 2025-12-30 Size : 247kb User : li
[matlab] bbcosamp DL : 0: 按块处理的基于压缩感知的压缩采样匹配追踪算法block-cosamp-By block processing based on compressed sensing compressive sampling matching pursuit algorithm block-cosamp
Date : 2025-12-30 Size : 2kb User : Dawn
[matlab] MWC-subnyquist DL : 0: MWC sub nyquist sampling Compressive sensing
Date : 2025-12-30 Size : 12kb User : bake
[matlab] random-demodulator DL : 0: 压缩采样仿真实验代码，基于随机解调器，仿真功能完善-Compressive sampling simulation code, based on random demodulator perfect simulation function
Date : 2025-12-30 Size : 4kb User :
[matlab] rcosamp DL : 0: 压缩采样重构算法中的正则化压缩采样匹配追踪算法-Compression sampling reconstruction algorithm regularized compressive sampling algorithm Matching Pursuit
Date : 2025-12-30 Size : 1kb User : 姚小古
[matlab] cs-sarcosamp DL : 0: 改进的稀疏度自适应正则化压缩采样匹配追踪算法，在自适应的基础上运用了正则化的思想-Improved adaptive sparsity regularization compressive sampling Matching Pursuit algorithm, based on the use of adaptive regularization ideas
Date : 2025-12-30 Size : 1kb User : 姚小古
[matlab] CS DL : 0: 压缩感知（Compressive Sensing，CS），有时也叫成Compressive Sampling。相对于传统的奈奎斯特采样定理——要求采样频率必须是信号最高频率的两倍或两倍以上（这就要求信号是带限信号，通常在采样前使用低通滤波器使信号带限），压缩感知则利用数据的冗余特性，只采集少量的样本还原原始数据。-（Compressive Sensing，CS）
Date : 2025-12-30 Size : 440kb User : 韩杰