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Background Subtraction (BS) is one of the key steps in video analysis. Many background models have been proposed and achieved promising performance on public data sets. However, due to challenges such as illumination change, dynamic…

计算机视觉与模式识别 · 计算机科学 2015-04-16 Bo Xin , Yuan Tian , Yizhou Wang , Wen Gao

In this paper we present a comprehensive framework for learning robust low-rank representations by combining and extending recent ideas for learning fast sparse coding regressors with structured non-convex optimization techniques. This…

机器学习 · 计算机科学 2012-10-01 Pablo Sprechmann , Alex M. Bronstein , Guillermo Sapiro

We consider a decomposition method for compressive streaming data in the context of online compressive Robust Principle Component Analysis (RPCA). The proposed decomposition solves an $n$-$\ell_1$ cluster-weighted minimization to decompose…

信息论 · 计算机科学 2018-02-09 Huynh Van Luong , Nikos Deligiannis , Søren Forchhammer , André Kaup

Particle Image Velocimetry (PIV) data processing procedures are adversely affected by light reflections and backgrounds as well as defects in the models and sticky particles that occlude the inner walls of the boundaries. In this paper, a…

计算机视觉与模式识别 · 计算机科学 2019-08-19 Ahmadreza Baghaie

Robust principal component analysis (RPCA) is a well-studied problem with the goal of decomposing a matrix into the sum of low-rank and sparse components. In this paper, we propose a nonconvex feasibility reformulation of RPCA problem and…

最优化与控制 · 数学 2020-01-27 Aritra Dutta , Filip Hanzely , Peter Richtárik

In tensor completion tasks, the traditional low-rank tensor decomposition models suffer from the laborious model selection problem due to their high model sensitivity. In particular, for tensor ring (TR) decomposition, the number of model…

机器学习 · 计算机科学 2018-12-03 Longhao Yuan , Chao Li , Danilo Mandic , Jianting Cao , Qibin Zhao

High-dimensional, higher-order tensor data are gaining prominence in a variety of fields, including but not limited to computer vision and network analysis. Tensor factor models, induced from noisy versions of tensor decompositions or…

统计方法学 · 统计学 2024-12-16 Xu Zhang , Guodong Li , Catherine C. Liu , Jianhua Guo

Tensor decomposition has emerged as a prominent technique to learn low-dimensional representation under the supervision of reconstruction error, primarily benefiting data inference tasks like completion and imputation, but not…

机器学习 · 计算机科学 2024-09-24 Man Li , Ziyue Li , Lijun Sun , Fugee Tsung

This paper describes a flexible framework for generalized low-rank tensor estimation problems that includes many important instances arising from applications in computational imaging, genomics, and network analysis. The proposed estimator…

统计理论 · 数学 2021-02-08 Rungang Han , Rebecca Willett , Anru R. Zhang

In this paper we propose novel methods for completion (from limited samples) and de-noising of multilinear (tensor) data and as an application consider 3-D and 4- D (color) video data completion and de-noising. We exploit the recently…

计算机视觉与模式识别 · 计算机科学 2014-10-31 Zemin Zhang , Gregory Ely , Shuchin Aeron , Ning Hao , Misha Kilmer

This paper is concerned with the computation of the principal components for a general tensor, known as the tensor principal component analysis (PCA) problem. We show that the general tensor PCA problem is reducible to its special case…

最优化与控制 · 数学 2013-11-19 Bo Jiang , Shiqian Ma , Shuzhong Zhang

The color video inpainting problem is one of the most challenging problem in the modern imaging science. It aims to recover a color video from a small part of pixels that may contain noise. However, there are less of robust models that can…

计算机视觉与模式识别 · 计算机科学 2023-06-19 Zhigang Jia , Jingfei Zhu

We present TensoRF, a novel approach to model and reconstruct radiance fields. Unlike NeRF that purely uses MLPs, we model the radiance field of a scene as a 4D tensor, which represents a 3D voxel grid with per-voxel multi-channel features.…

计算机视觉与模式识别 · 计算机科学 2022-11-30 Anpei Chen , Zexiang Xu , Andreas Geiger , Jingyi Yu , Hao Su

Compressive video capture encodes a short high-speed video into a single measurement using a low-speed sensor, then computationally reconstructs the original video. Prior implementations rely on expensive hardware and are restricted to…

图像与视频处理 · 电气工程与系统科学 2025-09-23 Kevin Tandi , Xiang Dai , Chinmay Talegaonkar , Gal Mishne , Nick Antipa

We provide guarantees for learning latent variable models emphasizing on the overcomplete regime, where the dimensionality of the latent space can exceed the observed dimensionality. In particular, we consider multiview mixtures, spherical…

机器学习 · 计算机科学 2014-12-18 Animashree Anandkumar , Rong Ge , Majid Janzamin

A new video coding method based on compressive sampling is proposed. In this method, a video is coded using compressive measurements on video cubes. Video reconstruction is performed by minimization of total variation (TV) of the pixelwise…

多媒体 · 计算机科学 2013-03-05 Chengbo Li , Hong Jiang , Paul Wilford , Yin Zhang , Mike Scheutzow

Tensor classification has become increasingly crucial in statistics and machine learning, with applications spanning neuroimaging, computer vision, and recommendation systems. However, the high dimensionality of tensors presents significant…

统计方法学 · 统计学 2024-09-24 Elynn Chen , Yuefeng Han , Jiayu Li

This paper addresses the challenging task of video captioning which aims to generate descriptions for video data. Recently, the attention-based encoder-decoder structures have been widely used in video captioning. In existing literature,…

机器学习 · 计算机科学 2019-11-04 Tao Jin , Siyu Huang , Yingming Li , Zhongfei Zhang

Principal component analysis (PCA) is a key tool in the field of data dimensionality reduction that is useful for various data science problems. However, many applications involve heterogeneous data that varies in quality due to noise…

机器学习 · 统计学 2023-11-14 Javier Salazar Cavazos , Jeffrey A. Fessler , Laura Balzano

Outdoor videos sometimes contain unexpected rain streaks due to the rainy weather, which bring negative effects on subsequent computer vision applications, e.g., video surveillance, object recognition and tracking, etc. In this paper, we…

计算机视觉与模式识别 · 计算机科学 2019-02-20 Zhaoyang Sun , Shengwu Xiong , Ryan Wen Liu