中文
相关论文

相关论文: An overview of deep learning based methods for uns…

200 篇论文

Unsupervised learning poses one of the most difficult challenges in computer vision today. The task has an immense practical value with many applications in artificial intelligence and emerging technologies, as large quantities of unlabeled…

计算机视觉与模式识别 · 计算机科学 2019-05-28 Ioana Croitoru , Simion-Vlad Bogolin , Marius Leordeanu

Time series anomaly detection has applications in a wide range of research fields and applications, including manufacturing and healthcare. The presence of anomalies can indicate novel or unexpected events, such as production faults, system…

机器学习 · 计算机科学 2024-09-04 Zahra Zamanzadeh Darban , Geoffrey I. Webb , Shirui Pan , Charu C. Aggarwal , Mahsa Salehi

The paper provides a survey of the development of machine-learning techniques for video analysis. The survey provides a summary of the most popular deep learning methods used for human activity recognition. We discuss how popular…

计算机视觉与模式识别 · 计算机科学 2023-12-12 Marios S. Pattichis , Venkatesh Jatla , Alvaro E. Ullao Cerna

We address the problem of anomaly detection, that is, detecting anomalous events in a video sequence. Anomaly detection methods based on convolutional neural networks (CNNs) typically leverage proxy tasks, such as reconstructing input video…

计算机视觉与模式识别 · 计算机科学 2020-03-31 Hyunjong Park , Jongyoun Noh , Bumsub Ham

Most videos, including those captured through aerial remote sensing, are usually non-stationary in nature having time-varying feature statistics. Although, sophisticated reconstruction and prediction models exist for video anomaly…

计算机视觉与模式识别 · 计算机科学 2025-03-05 Gargi V. Pillai , Debashis Sen

Modern video summarization methods are based on deep neural networks that require a large amount of annotated data for training. However, existing datasets for video summarization are small-scale, easily leading to over-fitting of the deep…

计算机视觉与模式识别 · 计算机科学 2022-10-20 Li Haopeng , Ke Qiuhong , Gong Mingming , Tom Drummond

A recent endeavor in one class of video anomaly detection is to leverage diffusion models and posit the task as a generation problem, where the diffusion model is trained to recover normal patterns exclusively, thus reporting abnormal…

计算机视觉与模式识别 · 计算机科学 2024-12-13 Hang Zhou , Jiale Cai , Yuteng Ye , Yonghui Feng , Chenxing Gao , Junqing Yu , Zikai Song , Wei Yang

Anomaly detection in crowd videos has become a popular area of research for the computer vision community. Several existing methods generally perform a prior training about the scene with or without the use of labeled data. However, it is…

计算机视觉与模式识别 · 计算机科学 2019-06-04 Arindam Sikdar , Ananda S. Chowdhury

Anomaly detection through video analysis is of great importance to detect any anomalous vehicle/human behavior at a traffic intersection. While most existing works use neural networks and conventional machine learning methods based on…

We address the problem of anomaly detection in videos. The goal is to identify unusual behaviours automatically by learning exclusively from normal videos. Most existing approaches are usually data-hungry and have limited generalization…

计算机视觉与模式识别 · 计算机科学 2020-07-16 Yiwei Lu , Frank Yu , Mahesh Kumar Krishna Reddy , Yang Wang

This paper provides a review on representation learning for videos. We classify recent spatiotemporal feature learning methods for sequential visual data and compare their pros and cons for general video analysis. Building effective…

计算机视觉与模式识别 · 计算机科学 2024-05-13 Elham Ravanbakhsh , Yongqing Liang , J. Ramanujam , Xin Li

Deep learning-based methods have achieved a breakthrough in image anomaly detection, but their complexity introduces a considerable challenge to understanding why an instance is predicted to be anomalous. We introduce a novel explanation…

计算机视觉与模式识别 · 计算机科学 2026-01-13 Philipp Liznerski , Saurabh Varshneya , Ece Calikus , Puyu Wang , Alexander Bartscher , Sebastian Josef Vollmer , Sophie Fellenz , Marius Kloft

Estimating depth from single RGB images and videos is of widespread interest due to its applications in many areas, including autonomous driving, 3D reconstruction, digital entertainment, and robotics. More than 500 deep learning-based…

计算机视觉与模式识别 · 计算机科学 2024-07-18 Uchitha Rajapaksha , Ferdous Sohel , Hamid Laga , Dean Diepeveen , Mohammed Bennamoun

UAV based surveillance is gaining much interest worldwide due to its extensive applications in monitoring wildlife, urban planning, disaster management, campus security, etc. These videos are analyzed for strange/odd/anomalous patterns…

计算机视觉与模式识别 · 计算机科学 2022-03-30 Girisha S , Ujjwal Verma , Manohara Pai M M , Radhika M Pai

We present a local anomaly detection method in videos. As opposed to most existing methods that are computationally expensive and are not very generalizable across different video scenes, we propose an adversarial framework that learns the…

计算机视觉与模式识别 · 计算机科学 2021-06-14 Pankaj Raj Roy , Guillaume-Alexandre Bilodeau , Lama Seoud

Anomaly detection in surveillance videos is currently a challenge because of the diversity of possible events. We propose a deep convolutional neural network (CNN) that addresses this problem by learning a correspondence between common…

计算机视觉与模式识别 · 计算机科学 2019-08-20 Trong Nguyen Nguyen , Jean Meunier

Visual anomaly detection targets to detect images that notably differ from normal pattern, and it has found extensive application in identifying defective parts within the manufacturing industry. These anomaly detection paradigms…

计算机视觉与模式识别 · 计算机科学 2024-11-15 Anindya Sundar Das , Guansong Pang , Monowar Bhuyan

Daily operation of a large-scale experiment is a resource consuming task, particularly from perspectives of routine data quality monitoring. Typically, data comes from different sub-detectors and the global quality of data depends on the…

数据分析、统计与概率 · 物理学 2017-11-21 V. Azzolini , M. Borisyak , G. Cerminara , D. Derkach , G. Franzoni , F. De Guio , O. Koval , M. Pierini , A. Pol , F. Ratnikov , F. Siroky , A. Ustyuzhanin , J-R. Vlimant

This paper strives for the detection of real-world anomalies such as burglaries and assaults in surveillance videos. Although anomalies are generally local, as they happen in a limited portion of the frame, none of the previous works on the…

计算机视觉与模式识别 · 计算机科学 2019-01-30 Federico Landi , Cees G. M. Snoek , Rita Cucchiara

Video Anomaly Detection (VAD) is critical for surveillance and public safety. However, existing benchmarks are limited to either frame-level or video-level tasks, restricting a holistic view of model generalization. This work first…

计算机视觉与模式识别 · 计算机科学 2025-09-17 Seoik Jung , Taekyung Song , Joshua Jordan Daniel , JinYoung Lee , SungJun Lee