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Video background subtraction is one of the fundamental problems in computer vision that aims to segment all moving objects. Robust principal component analysis has been identified as a promising unsupervised paradigm for background…

计算机视觉与模式识别 · 计算机科学 2023-09-28 Basit Alawode , Sajid Javed

We present an iterative scheme, reminiscent of the Multigrid method, to solve large boundary value problems with Probabilistic Domain Decomposition (PDD). In it, increasingly accurate approximations to the solution are used as control…

数值分析 · 数学 2017-01-06 Francisco Bernal , Juan A. Acebrón

Singular Value Decomposition (SVD) and its close relative, Principal Component Analysis (PCA), are well-known linear matrix decomposition techniques that are widely used in applications such as dimension reduction and clustering. However,…

计算机视觉与模式识别 · 计算机科学 2021-06-25 Abdolrahman Khoshrou , Eric J. Pauwels

Correlation filter (CF)-based methods have demonstrated exceptional performance in visual object tracking for unmanned aerial vehicle (UAV) applications, but suffer from the undesirable boundary effect. To solve this issue, spatially…

计算机视觉与模式识别 · 计算机科学 2020-08-11 Changhong Fu , Xiaoxiao Yang , Fan Li , Juntao Xu , Changjing Liu , Peng Lu

Recently, the square root principal component pursuit (SRPCP) model has garnered significant research interest. It is shown in the literature that the SRPCP model guarantees robust matrix recovery with a universal, constant penalty…

最优化与控制 · 数学 2025-03-18 Shengxiang Deng , Xudong Li , Yangjing Zhang

A method to improve l1 performance of the CS (Compressive Sampling) for A-scan SFCW-GPR (Stepped Frequency Continuous Wave-Ground Penetrating Radar) signals with known spectral energy density is proposed. Instead of random sampling, the…

信息论 · 计算机科学 2013-11-05 Andriyan Bayu Suksmono

Differentially private stochastic gradient descent (DP-SGD) is the gold standard for training machine learning models with formal differential privacy guarantees. Several recent extensions improve its accuracy by introducing correlated…

机器学习 · 计算机科学 2026-05-13 Nikita P. Kalinin , Ryan McKenna , Rasmus Pagh , Christoph H. Lampert

In this paper, we study the problem of decomposing a superposition of a low-rank matrix and a sparse matrix when a relatively few linear measurements are available. This problem arises in many data processing tasks such as aligning multiple…

信息论 · 计算机科学 2012-03-01 Arvind Ganesh , Kerui Min , John Wright , Yi Ma

Diffusion posterior sampling solves inverse problems by combining a pretrained diffusion prior with measurement-consistency guidance, but it often fails to recover fine details because measurement terms are applied in a manner that is…

计算机视觉与模式识别 · 计算机科学 2026-02-03 Feng Tian , Yixuan Li , Weili Zeng , Weitian Zhang , Yichao Yan , Xiaokang Yang

Deep Neural Networks have achieved remarkable success relying on the developing availability of GPUs and large-scale datasets with increasing network depth and width. However, due to the expensive computation and intensive memory,…

机器学习 · 计算机科学 2020-09-07 E Zhenqian , Gao Weiguo

Dashcam videos collected by autonomous or assisted-driving systems are increasingly shared for safety auditing and model improvement. Even when explicit GPS metadata are removed, an attacker can still infer the recording location by…

计算机视觉与模式识别 · 计算机科学 2026-04-03 Bo Ma , Jinsong Wu , Weiqi Yan , Catherine Shi , Minh Nguyen

The paper focuses on Image Compression, explaining efficient approaches based on Frequent Pattern Mining(FPM). The proposed compression mechanism is based on clustering similar pixels in the image and thus using cluster identifiers in image…

图像与视频处理 · 电气工程与系统科学 2026-02-03 Avinash Kadimisetty , C. Oswald , B. Sivalselvan

A novel decomposition scheme to solve parametric non-convex programs as they arise in Nonlinear Model Predictive Control (NMPC) is presented. It consists of a fixed number of alternating proximal gradient steps and a dual update per time…

最优化与控制 · 数学 2014-12-25 Jean-Hubert Hours , Colin N. Jones

In this paper, we present a compressed data structure for moving object trajectories in a road network, which are represented as sequences of road edges. Unlike existing compression methods for trajectories in a network, our method supports…

数据结构与算法 · 计算机科学 2017-10-02 Satoshi Koide , Yukihiro Tadokoro , Chuan Xiao , Yoshiharu Ishikawa

Coherent imaging systems, such as medical ultrasound and synthetic aperture radar (SAR), are subject to corruption from speckle due to sub-resolution scatterers. Since speckle is multiplicative in nature, the constituent image regions…

图像与视频处理 · 电气工程与系统科学 2023-11-21 Soumee Guha , Scott T. Acton

Semi-definite relaxation (SDR) detector has been demonstrated to be successful in approaching maximum likelihood (ML) performance while the time complexity is only polynomial. We propose a new receiver jointly utilizing the forward error…

信息论 · 计算机科学 2018-08-17 Kun Wang , Zhi Ding

This paper proposes a model order reduction method for a class of parametric dynamical systems. Using a temporal Fourier transform, we reformulate these systems into complex-valued elliptic equations in the frequency domain, containing…

数值分析 · 数学 2026-02-10 Yuming Ba , Liang Chen , Yaru Chen , Qiuqi Li

Domain generalization aims to learn a generalizable model from a known source domain for various unknown target domains. It has been studied widely by domain randomization that transfers source images to different styles in spatial space…

计算机视觉与模式识别 · 计算机科学 2021-03-04 Jiaxing Huang , Dayan Guan , Aoran Xiao , Shijian Lu

In the recent work of Candes et al, the problem of recovering low rank matrix corrupted by i.i.d. sparse outliers is studied and a very elegant solution, principal component pursuit, is proposed. It is motivated as a tool for video…

计算机视觉与模式识别 · 计算机科学 2015-03-17 Chenlu Qiu , Namrata Vaswani

This paper introduces a new localization method called SVD-PHAT. The SVD-PHAT method relies on Singular Value Decomposition of the SRP-PHAT projection matrix. A k-d tree is also proposed to speed up the search for the most likely direction…

音频与语音处理 · 电气工程与系统科学 2019-02-12 Francois Grondin , James Glass