Description: % 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 Platform: |
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Author:li123kai@126.com |
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Description: 利用TV算法实现两幅图像的融合，融合规则采用最大值选取规则，测量矩阵采用傅里叶星型抽样模型-TV algorithm using two images of fusion, fusion rule with the maximum selection rule, measurement matrix Fourier sampling model star Platform: |
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Author:yyyjjj |
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Description: 晶体硅光伏(PV)方阵I-V特性的现场测量,2000国家标准GT18210-Crystalline silicon photovoltaic (PV) characteristics of the site measurement matrix IV, 2000, the national standard GT18210 Platform: |
Size: 262144 |
Author:Michael He |
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Description: 一篇关于压缩感知的经典文章，压缩感知（Compressed sensing，简称CS，也称为Compressive sampling)理论异于近代奈奎斯特采样定理，它指出：利用随机观测矩阵可以把一个稀疏或可压缩的高维信号投影到低维空间上，然后再利用这些少量的投影通过解一个优化问题就可以以高概率重构原始稀疏信号，并且证明了这样的随机投影包含了原始稀疏信号的足够信息。-A classic article on compressed sensing, compressive sensing (Compressed sensing, referred to as CS, also known as Compressive sampling) different from the modern theory of the Nyquist sampling theorem, which states: the use of a random measurement matrix can be sparse or compressible high-dimensional signal projected to low dimensional space, and then use a small amount of projection by solving an optimization problem to be sparse with high probability to reconstruct the original signal, and prove that random projection of the original sparse signal contains enough information. Platform: |
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Author:刘奎 |
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Description: 文章是基于压缩感知理论的测量矩阵的研究。测量矩阵的选择是压缩感知理论的关键点，直接关系到信号重建效果的好坏！-Article is based on the theory of compressed sensing matrix measurement research. Measurement matrix of choice is the key to the theory of compressed sensing point, signal reconstruction is directly related to the effects of good or bad! Platform: |
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Author:wangtao |
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Description: 生成度量矩阵的新算法及拟度量矩阵的性质研究-A new algorithm to generate measurement matrix and the nature of the matrix to be measured Platform: |
Size: 194560 |
Author:sky |
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Description: 计算压缩感知的测量矩阵和稀疏基的RIP因子。-This file aims to calculate the RIP factor or the measurement matrix and sparse base in compressive sensing field. Platform: |
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Author:shan |
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Description: 矩阵加减乘除类的实现，可以直接调用，在做测量程序时用处较多，不需再次编写-Realization of matrix addition, subtraction, you can directly call more useful to do the measurement procedures, and without re-writing Platform: |
Size: 3072 |
Author:wxx |
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Description: 自己翻译的一篇最新外文文献《使用部分随机循环测量矩阵的1-bit压缩感知的频谱侦测网络系统》-Own translation of a the latest foreign literature " some random cycle measurement matrix 1-bit compressed sensing spectrum sensing network system Platform: |
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Author:彭程 |
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Description: 根据压缩传感(Compressed Sensing，cs)N论，首次提出了短时电能质量扰动信号的压缩采样方法，该方法突破了奈奎斯特采样频率的限制，实现了低于奈奎斯特采样频率的低速率采样。文中对比分析了CS理论与传统采样理论，研究了cS短时电能质量信号压缩采样的实现方法，包括：测量矩阵的构建、稀疏基的选取和电能质量信号快速贝叶斯匹配追踪重构算法(FBMP)-Compressed sensing ( Compressed Sensing , cs ) N theory , first proposed the short duration power quality disturbance signal compression sampling method , the method to break through the Nyquist sampling frequency limit below the Nyquist sampling the frequency of the low- rate sampling . Comparative analysis of the CS theory and traditional sampling theory to study the implementation of CS short-time power quality signal compression sampling , including: the construction of the measurement matrix sparse basis selection and power quality signal fast Bayesian reconstruction algorithm matching pursuit ( FBMP ) Platform: |
Size: 455680 |
Author:lili |
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Description: 压缩感知中的观测矩阵构造十分重要，所以有必要对其作出深入研究，本文献可以带你入门-Compressed sensing the observation matrix structure is very important, so it is necessary to make a thorough study of its present literature can bring you started Platform: |
Size: 798720 |
Author:大景 |
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Description: 基于CS测量矩阵优化的图像融合，测量矩阵是压缩感知理论的三大核心部分之一，它直接影响着压缩感知理论在图像融合领域的应用-Image Fusion CS measurement matrix optimization, measurement matrix is compressed sensing theory of one of the three core parts, which directly affects the compressive sensing theory in the field of image fusion Platform: |
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Author:shi |
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Description: 在压缩感知中各种随机观测矩阵的matlab构建方法。包括随机傅里叶矩阵，部分hardmand矩阵等-In compressed sensing observation of various matrix matlab random construction method. Including random Fourier matrix, part hardmand matrix, etc. Platform: |
Size: 2048 |
Author:王金 |
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Search - measurement matrix