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This work presents a novel approach for robust PCA with total variation regularization for foreground-background separation and denoising on noisy, moving camera video. Our proposed algorithm registers the raw (possibly corrupted) frames of…

机器学习 · 统计学 2017-09-28 Chen Gao , Brian E. Moore , Raj Rao Nadakuditi

Natural signals and images are well-known to be approximately sparse in transform domains such as Wavelets and DCT. This property has been heavily exploited in various applications in image processing and medical imaging. Compressed sensing…

机器学习 · 计算机科学 2015-10-26 Saiprasad Ravishankar , Yoram Bresler

Deep learning models often function as black boxes, providing no straightforward reasoning for their predictions. This is particularly true for computer vision models, which process tensors of pixel values to generate outcomes in tasks such…

计算机视觉与模式识别 · 计算机科学 2024-10-02 Sachin Karmani , Thanushon Sivakaran , Gaurav Prasad , Mehmet Ali , Wenbo Yang , Sheyang Tang

It is well known that Principal Component Analysis (PCA) is strongly affected by outliers and a lot of effort has been put into robustification of PCA. In this paper we present a new algorithm for robust PCA minimizing the trimmed…

机器学习 · 统计学 2015-06-02 Anastasia Podosinnikova , Simon Setzer , Matthias Hein

Low-rank and sparse decompositions and robust PCA (RPCA) are highly successful techniques in image processing and have recently found use in groupwise image registration. In this paper, we investigate the drawbacks of the most common…

计算机视觉与模式识别 · 计算机科学 2020-01-13 Roland Haase , Stefan Heldmann , Jan Lellmann

Semantic segmentation in very high resolution (VHR) aerial images is one of the most challenging tasks in remote sensing image understanding. Most of the current approaches are based on deep convolutional neural networks (DCNNs). However,…

计算机视觉与模式识别 · 计算机科学 2020-09-16 Ruigang Niu , Xian Sun , Yu Tian , Wenhui Diao , Kaiqiang Chen , Kun Fu

Adaptive inference is an effective mechanism to achieve a dynamic tradeoff between accuracy and computational cost in deep networks. Existing works mainly exploit architecture redundancy in network depth or width. In this paper, we focus on…

计算机视觉与模式识别 · 计算机科学 2020-05-19 Le Yang , Yizeng Han , Xi Chen , Shiji Song , Jifeng Dai , Gao Huang

Maximal Coding Rate Reduction (MCR2)-driven white-box transformer, grounded in structured representation learning, unifies interpretability and efficiency, providing a reliable white-box solution for visual modeling. However, in existing…

计算机视觉与模式识别 · 计算机科学 2026-01-27 Tianyuan Liu , Libin Hou , Linyuan Wang , Bin Yan

This paper studies tensor-based Robust Principal Component Analysis (RPCA) using atomic-norm regularization. Given the superposition of a sparse and a low-rank tensor, we present conditions under which it is possible to exactly recover the…

最优化与控制 · 数学 2019-01-31 Derek Driggs , Stephen Becker , Jordan Boyd-Graber

Although robust PCA has been increasingly adopted to extract vessels from X-ray coronary angiography (XCA) images, challenging problems such as inefficient vessel-sparsity modelling, noisy and dynamic background artefacts, and high…

图像与视频处理 · 电气工程与系统科学 2022-04-26 Binjie Qin , Haohao Mao , Yiming Liu , Jun Zhao , Yisong Lv , Yueqi Zhu , Song Ding , Xu Chen

Functional principal component analysis (FPCA) is a fundamental tool and has attracted increasing attention in recent decades, while existing methods are restricted to data with a single or finite number of random functions (much smaller…

统计方法学 · 统计学 2021-01-22 Xiaoyu Hu , Fang Yao

We study the tensor robust principal component analysis (TRPCA) problem, a tensorial extension of matrix robust principal component analysis (RPCA), that aims to split the given tensor into an underlying low-rank component and a sparse…

数值分析 · 数学 2024-01-30 HanQin Cai , Zehan Chao , Longxiu Huang , Deanna Needell

The aim of sparse approximation is to estimate a sparse signal according to the measurement matrix and an observation vector. It is widely used in data analytics, image processing, and communication, etc. Up to now, a lot of research has…

信号处理 · 电气工程与系统科学 2018-05-31 Hao Wang , Ruibin Feng , Chi-Sing Leung

In the past decades, exactly recovering the intrinsic data structure from corrupted observations, which is known as robust principal component analysis (RPCA), has attracted tremendous interests and found many applications in computer…

数值分析 · 计算机科学 2012-05-08 Risheng Liu , Zhouchen Lin , Siming Wei , Zhixun Su

Sparse principal component analysis (PCA) is a popular dimensionality reduction technique for obtaining principal components which are linear combinations of a small subset of the original features. Existing approaches cannot supply…

最优化与控制 · 数学 2022-02-22 Dimitris Bertsimas , Ryan Cory-Wright , Jean Pauphilet

Despite strong empirical performance for image classification, deep neural networks are often regarded as ``black boxes'' and they are difficult to interpret. On the other hand, sparse convolutional models, which assume that a signal can be…

计算机视觉与模式识别 · 计算机科学 2022-10-25 Xili Dai , Mingyang Li , Pengyuan Zhai , Shengbang Tong , Xingjian Gao , Shao-Lun Huang , Zhihui Zhu , Chong You , Yi Ma

Deep learning has excelled in medical image classification, but its clinical application is limited by poor interpretability. Capsule networks, known for encoding hierarchical relationships and spatial features, show potential in addressing…

计算机视觉与模式识别 · 计算机科学 2024-11-05 Xinyu Geng , Jiaming Wang , Jun Xu

Millimeter-wave radars are being increasingly integrated into commercial vehicles to support new advanced driver-assistance systems by enabling robust and high-performance object detection, localization, as well as recognition - a key…

信号处理 · 电气工程与系统科学 2022-05-02 Xiangyu Gao , Guanbin Xing , Sumit Roy , Hui Liu

In recent years, significant progress has been made in the medical image analysis domain using convolutional neural networks (CNNs). In particular, deep neural networks based on a U-shaped architecture (UNet) with skip connections have been…

图像与视频处理 · 电气工程与系统科学 2024-10-16 Vamsi Krishna Vasa , Wenhui Zhu , Xiwen Chen , Peijie Qiu , Xuanzhao Dong , Yalin Wang

In a broad range of computer vision applications, the purpose of Low-rank matrix approximation (LRMA) models is to recover the underlying low-rank matrix from its degraded observation. The latest LRMA methods - Robust Principal Component…

计算机视觉与模式识别 · 计算机科学 2020-07-27 K. V. Sridhar , Raghu vamshi Hemadri
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