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In recent years, discriminative self-supervised methods have made significant strides in advancing various visual tasks. The central idea of learning a data encoder that is robust to data distortions/augmentations is straightforward yet…

计算机视觉与模式识别 · 计算机科学 2023-08-17 Yuewei Yang , Hai Li , Yiran Chen

Dynamic Mode Decomposition (DMD) has emerged as a powerful tool for analyzing the dynamics of non-linear systems from experimental datasets. Recently, several attempts have extended DMD to the context of low-rank approximations. This…

机器学习 · 统计学 2018-05-18 Patrick Héas , Cédric Herzet

In the past few years, deep learning-based methods have demonstrated enormous success for solving inverse problems in medical imaging. In this work, we address the following question:\textit{Given a set of measurements obtained from real…

图像与视频处理 · 电气工程与系统科学 2019-05-24 Ortal Senouf , Sanketh Vedula , Tomer Weiss , Alex Bronstein , Oleg Michailovich , Michael Zibulevsky

We analyze sparse frame based regularization of inverse problems by means of a diagonal frame decomposition (DFD) for the forward operator, which generalizes the SVD. The DFD allows to define a non-iterative (direct) operator-adapted frame…

数值分析 · 数学 2019-12-13 Jürgen Frikel , Markus Haltmeier

We present a novel approach for inspecting variable data prints (VDP) with an ultra-low false alarm rate (0.005%) and potential applicability to other real-world problems. The system is based on a comparison between two images: a reference…

计算机视觉与模式识别 · 计算机科学 2020-01-14 Oren Haik , Oded Perry , Eli Chen , Peter Klammer

Many interesting tasks in image restoration can be cast as linear inverse problems. A recent family of approaches for solving these problems uses stochastic algorithms that sample from the posterior distribution of natural images given the…

图像与视频处理 · 电气工程与系统科学 2022-10-14 Bahjat Kawar , Michael Elad , Stefano Ermon , Jiaming Song

Singular value decomposition (SVD) is a widely used technique for dimensionality reduction and computation of basis vectors. In many applications, especially in fluid mechanics and image processing the matrices are dense, but low-rank…

数值分析 · 计算机科学 2019-05-13 Vinita Vasudevan , M. Ramakrishna

The structured singular value (SSV), or mu, is used to assess the robust stability and performance of an uncertain linear time-invariant system. Existing algorithms compute upper and lower bounds on the SSV for structured uncertainties that…

系统与控制 · 电气工程与系统科学 2024-01-09 Talha Mushtaq , Diganta Bhattacharjee , Peter Seiler , Maziar S. Hemati

Solving high-frequency oscillatory partial differential equations (PDEs) is a critical challenge in scientific computing, with applications in fluid mechanics, quantum mechanics, and electromagnetic wave propagation. Traditional…

机器学习 · 计算机科学 2025-08-04 Xiong Xiong , Zhuo Zhang , Rongchun Hu , Chen Gao , Zichen Deng

Learning-based single image super-resolution (SISR) methods are continuously showing superior effectiveness and efficiency over traditional model-based methods, largely due to the end-to-end training. However, different from model-based…

图像与视频处理 · 电气工程与系统科学 2020-03-24 Kai Zhang , Luc Van Gool , Radu Timofte

In this paper we show how to perform scene-level inverse rendering to recover shape, reflectance and lighting from a single, uncontrolled image using a fully convolutional neural network. The network takes an RGB image as input, regresses…

计算机视觉与模式识别 · 计算机科学 2021-02-15 Ye Yu , William A. P. Smith

There is rising interest in differentiable rendering, which allows explicitly modeling geometric priors and constraints in optimization pipelines using first-order methods such as backpropagation. Incorporating such domain knowledge can…

图像与视频处理 · 电气工程与系统科学 2023-08-09 Michael Wilmanski , Jonathan Tamir

We propose new algorithms for singular value decomposition (SVD) of very large-scale matrices based on a low-rank tensor approximation technique called the tensor train (TT) format. The proposed algorithms can compute several dominant…

数值分析 · 数学 2016-02-11 Namgil Lee , Andrzej Cichocki

Recovering a high-quality image from noisy indirect measurements is an important problem with many applications. For such inverse problems, supervised deep convolutional neural network (CNN)-based denoising methods have shown strong…

图像与视频处理 · 电气工程与系统科学 2020-09-16 Allard A. Hendriksen , Daniel M. Pelt , K. Joost Batenburg

This work presents an independent reproducibility study of a lossy image compression technique that integrates singular value decomposition (SVD) and wavelet difference reduction (WDR). The original paper claims that combining SVD and WDR…

计算机视觉与模式识别 · 计算机科学 2025-12-09 Alena Makarova

Weighted singular value decomposition (WSVD) and a representation of the weighted Moore-Penrose inverse of a quaternion matrix by WSVD have been derived. Using this representation, limit and determinantal representations of the weighted…

环与代数 · 数学 2016-04-04 Ivan Kyrchei

The resurgence of deep neural networks has created an alternative pathway for low-dose computed tomography denoising by learning a nonlinear transformation function between low-dose CT (LDCT) and normal-dose CT (NDCT) image pairs. However,…

图像与视频处理 · 电气工程与系统科学 2022-11-04 Sutanu Bera , Prabir Kumar Biswas

Anomaly Detection (AD), as a critical problem, has been widely discussed. In this paper, we specialize in one specific problem, Visual Defect Detection (VDD), in many industrial applications. And in practice, defect image samples are very…

计算机视觉与模式识别 · 计算机科学 2022-11-30 Yapeng Teng , Haoyang Li , Fuzhen Cai , Ming Shao , Siyu Xia

X-ray interaction with matter is an energy-dependent process that is contingent on the atomic structure of the constituent material elements. The most advanced models to capture this relationship currently rely on Monte Carlo (MC)…

机器学习 · 计算机科学 2023-07-11 Raziye Kubra Kumrular , Thomas Blumensath

Analyzing complex experimental data with multiple parameters is challenging. We propose using Singular Value Decomposition (SVD) as an effective solution. This method, demonstrated through real experimental data analysis, surpasses…

数据分析、统计与概率 · 物理学 2024-07-24 Judith F. Stein , Aviad Frydman , Richard Berkovits