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Signal reconstruction is a crucial aspect of compressive sensing. In weighted cases, there are two common types of weights. In order to establish a unified framework for handling various types of weights, the sparse function is introduced.…

经典分析与常微分方程 · 数学 2024-10-10 Xiaotong Liu , Yiyu Liang

In this paper we study the problem of recovering sparse or compressible signals from uniformly quantized measurements. We present a new class of convex optimization programs, or decoders, coined Basis Pursuit DeQuantizer of moment $p$…

最优化与控制 · 数学 2015-03-13 Laurent Jacques , David K. Hammond , M. Jalal Fadili

We study the recovery conditions of weighted mixed $\ell_2/\ell_p\,(0<p\leq 1)$ minimization for block sparse signal reconstruction from compressed measurements when partial block support information is available. We show that the block…

信息论 · 计算机科学 2017-10-19 Zhiyong Zhou , Jun Yu

We consider the problem of recovering sparse vectors from underdetermined linear measurements via $\ell_p$-constrained basis pursuit. Previous analyses of this problem based on generalized restricted isometry properties have suggested that…

信息论 · 计算机科学 2015-04-21 Sjoerd Dirksen , Guillaume Lecué , Holger Rauhut

Weighted $\ell_1$-minimization has been studied as a technique for the reconstruction of a sparse signal from compressively sampled measurements when prior information about the signal, in the form of a support estimate, is available. In…

信息论 · 计算机科学 2016-12-09 Deanna Needell , Rayan Saab , Tina Woolf

In this paper we study the recovery conditions of weighted $l_{1}$ minimization for signal reconstruction from incomplete linear measurements when partial prior support information is available. We obtain that a high order RIP condition can…

信息论 · 计算机科学 2016-03-14 Wengu Chen , Yaling Li

In this paper, with the aid of the powerful Restricted Isometry Constant (RIC), a deterministic (or say non-stochastic) analysis, which includes a series of sufficient conditions (related to the RIC order) and their resultant error…

信息论 · 计算机科学 2019-03-05 Wendong Wang , Jianjun Wang

In this paper we address the recovery conditions of weighted $\ell_p$ minimization for signal reconstruction from compressed sensing measurements when partial support information is available. We show that weighted $\ell_p$ minimization…

信息论 · 计算机科学 2013-11-18 Navid Ghadermarzy , Hassan Mansour , Ozgur Yilmaz

In this paper, we introduce a weighted $\ell_2/\ell_1$ minimization to recover block sparse signals with arbitrary prior support information. When partial prior support information is available, a sufficient condition based on the high…

信息论 · 计算机科学 2017-06-30 Wengu Chen , Huanmin Ge

We study the recovery of sparse signals from underdetermined linear measurements when a potentially erroneous support estimate is available. Our results are twofold. First, we derive necessary and sufficient conditions for signal recovery…

信息论 · 计算机科学 2014-12-05 Hassan Mansour , Rayan Saab

In this paper we study the compressed sensing problem of recovering a sparse signal from a system of underdetermined linear equations when we have prior information about the probability of each entry of the unknown signal being nonzero. In…

信息论 · 计算机科学 2009-01-20 M. Amin Khajehnejad , Weiyu Xu , Salman Avestimehr , Babak Hassibi

Basis pursuit is a compressed sensing optimization in which the l1-norm is minimized subject to model error constraints. Here we use a deep neural network prior instead of l1-regularization. Using known noise statistics, we jointly learn…

信号处理 · 电气工程与系统科学 2020-02-18 Jonathan I. Tamir , Stella X. Yu , Michael Lustig

In this paper, we provide a new approach to estimating the error of reconstruction from $\Sigma\Delta$ quantized compressed sensing measurements. Our method is based on the restricted isometry property (RIP) of a certain projection of the…

信息论 · 计算机科学 2015-06-19 Joe-Mei Feng , Felix Krahmer

This paper is a direct followup of the recent author's paper. In this paper we continue to analyze approximation and recovery properties with respect to systems satisfying universal sampling discretization property and a special…

数值分析 · 数学 2024-01-29 V. Temlyakov

This paper studies the problem of reconstructing sparse or compressible signals from compressed sensing measurements that have undergone nonuniform quantization. Previous approaches to this Quantized Compressed Sensing (QCS) problem based…

信息论 · 计算机科学 2013-05-17 L. Jacques , D. K. Hammond , M. J. Fadili

In this work, we study the problem of reconstructing a sparse signal from a limited number of linear 'incoherent' noisy measurements, when a part of its support is known. The known part of the support may be available from prior knowledge…

信息论 · 计算机科学 2009-10-12 Wei Lu , Namrata Vaswani

In this paper, we study a general low-rank matrix recovery problem with linear measurements corrupted by some noise. The objective is to understand under what conditions on the restricted isometry property (RIP) of the problem local search…

最优化与控制 · 数学 2023-07-26 Ziye Ma , Yingjie Bi , Javad Lavaei , Somayeh Sojoudi

We study a class of real robust phase retrieval problems under a Gaussian assumption on the coding matrix when the received signal is sparsely corrupted by noise. The goal is to establish conditions on the sparsity under which the input…

信息论 · 计算机科学 2019-05-27 Aleksandr Aravkin , James Burke , Daiwei He

This short note studies a variation of the Compressed Sensing paradigm introduced recently by Vaswani et al., i.e. the recovery of sparse signals from a certain number of linear measurements when the signal support is partially known. The…

信息论 · 计算机科学 2010-02-21 Laurent Jacques

The constrained $\ell_p^p/\ell_q^p$ ratio model is scale invariant and is therefore attractive for sparse signal recovery. However, its nonconvex, nonsmooth, and fractional structure makes a unified theoretical and algorithmic analysis…

最优化与控制 · 数学 2026-05-26 Lang Yu , Nan-jing Huang
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