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This work addresses the robust reconstruction problem of a sparse signal from compressed measurements. We propose a robust formulation for sparse reconstruction which employs the $\ell_1$-norm as the loss function for the residual error and…

信息论 · 计算机科学 2017-03-30 Fei Wen , Yuan Yang , Ling Pei , Wenxian Yu , Peilin Liu

Sensing in non-line-of-sight (NLOS) is a well-known issue that limits the effective range of radar-like sensors. Existing approaches for NLOS sensing consider the usage of either metallic mirrors, that only work under specular reflection,…

信号处理 · 电气工程与系统科学 2024-08-20 Davide Tornielli Bellini , Dario Tagliaferri , Marouan Mizmizi , Stefano Tebaldini , Umberto Spagnolini

Localization of robots is vital for navigation and path planning, such as in cases where a map of the environment is needed. Ultra-Wideband (UWB) for indoor location systems has been gaining popularity over the years with the introduction…

机器人学 · 计算机科学 2022-06-23 Muhammad Shalihan , Ran Liu , Chau Yuen

In the last few years, with the rapid development of deep learning technologies, supervised methods based on convolutional neural networks have greatly enhanced the performance of medical image denoising. However, these methods require…

图像与视频处理 · 电气工程与系统科学 2025-03-10 Langrui Zhou , Ziteng Zhou , Xinyu Huang , Huiru Wang , Xiangyu Zhang , Guang Li

An undesirable side effect of reversible color space transformation, which consists of lifting steps (LSs), is that while removing correlation it contaminates transformed components with noise from other components. Noise affects…

多媒体 · 计算机科学 2020-05-05 Roman Starosolski

Hyperspectral (HS) images provide fine spectral resolution but have limited spatial resolution, whereas multispectral (MS) images capture finer spatial details but have fewer bands. HS-MS fusion aims to integrate HS and MS images to…

图像与视频处理 · 电气工程与系统科学 2025-11-12 Sagar Kumar , Unni V S , Kunal Narayan Chaudhury

Solving inverse problems requires appropriate regularization techniques to ensure well-posedness and stability. In recent years, denoiser-driven methods have emerged as effective regularization strategies, achieving state-of-the-art…

数值分析 · 数学 2026-04-23 Harshit Bajpai , Ankik Kumar Giri , Tim Jahn , Abhinav Jha

Image denoising is a prerequisite for downstream tasks in many fields. Low-dose and photon-counting computed tomography (CT) denoising can optimize diagnostic performance at minimized radiation dose. Supervised deep denoising methods are…

机器学习 · 计算机科学 2022-01-06 Chuang Niu , Mengzhou Li , Fenglei Fan , Weiwen Wu , Xiaodong Guo , Qing Lyu , Ge Wang

Small compression noises, despite being transparent to human eyes, can adversely affect the results of many image restoration processes, if left unaccounted for. Especially, compression noises are highly detrimental to inverse operators of…

计算机视觉与模式识别 · 计算机科学 2016-01-08 Xiao Shu , Xiaolin Wu

Recent works have demonstrated non-line of sight (NLOS) reconstruction by using the time-resolved signal frommultiply scattered light. These works combine ultrafast imaging systems with computation, which back-projects the recorded…

计算机视觉与模式识别 · 计算机科学 2017-06-21 Victor Arellano , Diego Gutierrez , Adrian Jarabo

Non-line-of-sight (NLOS) imaging with intelligent sensors emerges as a novel technique in imaging and sensing occluded objects around corners. With the innovation of bio-inspired neuromorphic sensors, the applications of novel sensors in…

光学 · 物理学 2024-11-15 Conghe Wang , Xia Wang , Yujie Fang , Changda Yan , Xin Zhang , Yifan Zuo

Fast and sensitive detector arrays enable image scanning microscopy (ISM), overcoming the trade-off between spatial resolution and signal-to-noise ratio (SNR) typical of confocal microscopy. However, current ISM approaches cannot provide…

Non-local self similarity (NSS) is a powerful prior of natural images for image denoising. Most of existing denoising methods employ similar patches, which is a patch-level NSS prior. In this paper, we take one step forward by introducing a…

计算机视觉与模式识别 · 计算机科学 2020-04-22 Yingkun Hou , Jun Xu , Mingxia Liu , Guanghai Liu , Li Liu , Fan Zhu , Ling Shao

Denoising, the process of reducing random fluctuations in a signal to emphasize essential patterns, has been a fundamental problem of interest since the dawn of modern scientific inquiry. Recent denoising techniques, particularly in…

机器学习 · 计算机科学 2024-12-04 Peyman Milanfar , Mauricio Delbracio

The technological advance of High Numerical Aperture Extreme Ultraviolet Lithography (High NA EUVL) has opened the gates to extensive researches on thinner photoresists (below 30nm), necessary for the industrial implementation of High NA…

计算机视觉与模式识别 · 计算机科学 2023-10-24 Sara Sacchi , Bappaditya Dey , Iacopo Mochi , Sandip Halder , Philippe Leray

The sparse linear reconstruction problem is a core problem in signal processing which aims to recover sparse solutions to linear systems. The original problem regularized by the total number of nonzero components (also known as $L_0$…

最优化与控制 · 数学 2025-11-19 Yuyuan Ouyang , Kyle Yates

We have shown that the vector of the point spread function (PSF) lexicographical presentation belongs to the left side conjugated null space (NS) of the autoregression (AR) matrix operator on condition the AR parameters are common for…

计算机视觉与模式识别 · 计算机科学 2015-03-02 Yuriy A. Bunyak , Roman N. Kvetnyy , Olga Yu. Sofina

Neural Radiance Fields (NeRF) enable 3D scene reconstruction from 2D images and camera poses for Novel View Synthesis (NVS). Although NeRF can produce photorealistic results, it often suffers from overfitting to training views, leading to…

计算机视觉与模式识别 · 计算机科学 2023-11-07 Fusang Wang , Arnaud Louys , Nathan Piasco , Moussab Bennehar , Luis Roldão , Dzmitry Tsishkou

Finding sparse solutions of underdetermined linear systems commonly requires the solving of L1 regularized least squares minimization problem, which is also known as the basis pursuit denoising (BPDN). They are computationally expensive…

信号处理 · 电气工程与系统科学 2026-04-22 Kun Qian , Yuanyuan Wang , Peter Jung , Yilei Shi , Xiao Xiang Zhu

The recent neural surface reconstruction by volume rendering approaches have made much progress by achieving impressive surface reconstruction quality, but are still limited to dense and highly accurate posed views. To overcome such…

计算机视觉与模式识别 · 计算机科学 2023-07-13 Shi-Sheng Huang , Zi-Xin Zou , Yi-Chi Zhang , Hua Huang