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The blind deconvolution problem amounts to reconstructing both a signal and a filter from the convolution of these two. It constitutes a prominent topic in mathematical and engineering literature. In this work, we analyze a sparse version…

信息论 · 计算机科学 2021-11-08 Axel Flinth , Ingo Roth , Benedikt Groß , Jens Eisert , Gerhard Wunder

In this paper, we tackle the problem of blind image super-resolution(SR) with a reformulated degradation model and two novel modules. Following the common practices of blind SR, our method proposes to improve both the kernel estimation as…

图像与视频处理 · 电气工程与系统科学 2022-03-28 Ziwei Luo , Haibin Huang , Lei Yu , Youwei Li , Haoqiang Fan , Shuaicheng Liu

Low-rank matrix completion consists of computing a matrix of minimal complexity that recovers a given set of observations as accurately as possible. Unfortunately, existing methods for matrix completion are heuristics that, while highly…

机器学习 · 计算机科学 2026-03-12 Dimitris Bertsimas , Ryan Cory-Wright , Sean Lo , Jean Pauphilet

Hyperspectral image (HSI) and multispectral image (MSI) fusion aims at producing a super-resolution image (SRI). In this paper, we establish a nonconvex optimization model for image fusion problems through low-rank tensor triple…

最优化与控制 · 数学 2024-04-02 Xiaofei Cui , Jingya Chang

As a real scenes sensing approach, depth information obtains the widespread applications. However, resulting from the restriction of depth sensing technology, the depth map captured in practice usually suffers terrible noise and missing…

计算机视觉与模式识别 · 计算机科学 2020-01-09 Wenxiang Zuo , Qiang Li , Xianming Liu

In this paper, we address the issue of hyperspectral pan-sharpening, which consists in fusing a (low spatial resolution) hyperspectral image HX and a (high spatial resolution) panchromatic image P to obtain a high spatial resolution…

计算机视觉与模式识别 · 计算机科学 2014-05-13 Alexis Huck , François de Vieilleville , Pierre Weiss , Manuel Grizonnet

Hyperspectral super-resolution (HSR) is a problem that aims to estimate an image of high spectral and spatial resolutions from a pair of co-registered multispectral (MS) and hyperspectral (HS) images, which have coarser spectral and spatial…

图像与视频处理 · 电气工程与系统科学 2020-10-28 Ruiyuan Wu , Wing-Kin Ma , Xiao Fu , Qiang Li

This paper considers the problem of recovery of a low-rank matrix in the situation when most of its entries are not observed and a fraction of observed entries are corrupted. The observations are noisy realizations of the sum of a low rank…

统计理论 · 数学 2016-07-05 Olga Klopp , Karim Lounici , Alexandre B. Tsybakov

In this work, we investigate an efficient numerical approach for solving higher order statistical methods for blind and semi-blind signal recovery from non-ideal channels. We develop numerical algorithms based on convex optimization…

信息论 · 计算机科学 2016-11-17 Huy-Dung Han , Zhi Ding , Muhammad Zia

We revisit the use of Stochastic Gradient Descent (SGD) for solving convex optimization problems that serve as highly popular convex relaxations for many important low-rank matrix recovery problems such as \textit{matrix completion},…

机器学习 · 计算机科学 2020-06-16 Dan Garber

In this paper, we investigate the problem of recovering the frequency components of a mixture of $K$ complex sinusoids from a random subset of $N$ equally-spaced time-domain samples. Because of the random subset, the samples are effectively…

信号处理 · 电气工程与系统科学 2023-11-10 Mohammad Bokaei , Saeed Razavikia , Stefano Rini , Arash Amini , Hamid Behrouzi

We consider the problem of estimation of a low-rank matrix from a limited number of noisy rank-one projections. In particular, we propose two fast, non-convex \emph{proper} algorithms for matrix recovery and support them with rigorous…

机器学习 · 统计学 2017-05-23 Mohammadreza Soltani , Chinmay Hegde

Robust matrix completion (RMC) is a widely used machine learning tool that simultaneously tackles two critical issues in low-rank data analysis: missing data entries and extreme outliers. This paper proposes a novel scalable and learnable…

机器学习 · 计算机科学 2026-05-22 HanQin Cai , Chandra Kundu , Jialin Liu , Wotao Yin

Wireless sensor networks are widely adopted in military, civilian and commercial applications, which fuels an exponential explosion of sensory data. However, a major challenge to deploy effective sensing systems is the presence of {\em…

信息论 · 计算机科学 2015-09-15 Xiao-Yang Liu , Xiaodong Wang , Linghe Kong , Meikang Qiu , Min-You Wu

Higher-order low-rank tensors naturally arise in many applications including hyperspectral data recovery, video inpainting, seismic data recon- struction, and so on. We propose a new model to recover a low-rank tensor by simultaneously…

数值分析 · 计算机科学 2015-07-07 Yangyang Xu , Ruru Hao , Wotao Yin , Zhixun Su

This paper studies a recovery task of finding a low multilinear-rank tensor that fulfills some linear constraints in the general settings, which has many applications in computer vision and graphics. This problem is named as the low…

最优化与控制 · 数学 2013-10-08 Lei Yang , Zheng-Hai Huang , Yufan Li

In this paper, we introduce a novel low-rank Hankel tensor completion approach to address the problem of multi-measurement spectral compressed sensing. By lifting the multiple signals to a Hankel tensor, we reformulate this problem into a…

信息论 · 计算机科学 2025-07-08 Jinsheng Li , Xu Zhang , Shuang Wu , Wei Cui

Hyperspectral and multispectral images fusion aims at integrating a low-resolution hyperspectral image (LR-HSI) and a high-resolution multispectral image (HR-MSI) to construct a high-resolution hyperspectral image (HR-HSI). It is generally…

最优化与控制 · 数学 2026-03-13 Ying Gao , Michael K. Ng , Chunfeng cui

In this work, we consider the low rank decomposition (SDPR) of general convex semidefinite programming problems (SDP) that contain both a positive semidefinite matrix and a nonnegative vector as variables. We develop a rank-support-adaptive…

最优化与控制 · 数学 2023-12-14 Tianyun Tang , Kim-Chuan Toh

Wisely utilizing the internal and external learning methods is a new challenge in super-resolution problem. To address this issue, we analyze the attributes of two methodologies and find two observations of their recovered details: 1) they…

计算机视觉与模式识别 · 计算机科学 2023-02-20 Shuang Wang , Bo Yue , Xuefeng Liang , Peiyuan Ji , Licheng Jiao