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Related papers: Weakly-Supervised Anomaly Detection in Surveillanc…

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Anomaly detection with weakly supervised video-level labels is typically formulated as a multiple instance learning (MIL) problem, in which we aim to identify snippets containing abnormal events, with each video represented as a bag of…

Computer Vision and Pattern Recognition · Computer Science 2021-08-09 Yu Tian , Guansong Pang , Yuanhong Chen , Rajvinder Singh , Johan W. Verjans , Gustavo Carneiro

Abnormal event detection or anomaly detection in surveillance videos is currently a challenge because of the diversity of possible events. Due to the lack of anomalous events at training time, anomaly detection requires the design of…

Computer Vision and Pattern Recognition · Computer Science 2024-09-17 Darshan Venkatrayappa

Semi-supervised video anomaly detection (VAD) methods formulate the task of anomaly detection as detection of deviations from the learned normal patterns. Previous works in the field (reconstruction or prediction-based methods) suffer from…

Computer Vision and Pattern Recognition · Computer Science 2022-05-05 Mohammad Baradaran , Robert Bergevin

Recent advancements in weakly-supervised video anomaly detection have achieved remarkable performance by applying the multiple instance learning paradigm based on multimodal foundation models such as CLIP to highlight anomalous instances…

Computer Vision and Pattern Recognition · Computer Science 2025-11-14 Wenti Yin , Huaxin Zhang , Xiang Wang , Yuqing Lu , Yicheng Zhang , Bingquan Gong , Jialong Zuo , Li Yu , Changxin Gao , Nong Sang

In this paper, we propose a weakly supervised deep temporal encoding-decoding solution for anomaly detection in surveillance videos using multiple instance learning. The proposed approach uses both abnormal and normal video clips during the…

Computer Vision and Pattern Recognition · Computer Science 2021-01-06 Ammar Mansoor Kamoona , Amirali Khodadadian Gosta , Alireza Bab-Hadiashar , Reza Hoseinnezhad

Weakly supervised video anomaly detection (WS-VAD) is a crucial area in computer vision for developing intelligent surveillance systems. This system uses three feature streams: RGB video, optical flow, and audio signals, where each stream…

Computer Vision and Pattern Recognition · Computer Science 2025-04-07 Yuta Kaneko , Abu Saleh Musa Miah , Najmul Hassan , Hyoun-Sup Lee , Si-Woong Jang , Jungpil Shin

In this paper, we introduce a novel task, referred to as Weakly-Supervised Spatio-Temporal Anomaly Detection (WSSTAD) in surveillance video. Specifically, given an untrimmed video, WSSTAD aims to localize a spatio-temporal tube (i.e., a…

Computer Vision and Pattern Recognition · Computer Science 2021-08-10 Jie Wu , Wei Zhang , Guanbin Li , Wenhao Wu , Xiao Tan , Yingying Li , Errui Ding , Liang Lin

We tackle the complex problem of detecting and recognising anomalies in surveillance videos at the frame level, utilising only video-level supervision. We introduce the novel method AnomalyCLIP, the first to combine Large Language and…

Computer Vision and Pattern Recognition · Computer Science 2023-10-05 Luca Zanella , Benedetta Liberatori , Willi Menapace , Fabio Poiesi , Yiming Wang , Elisa Ricci

Video anomaly detection is one of the hot research topics in computer vision nowadays, as abnormal events contain a high amount of information. Anomalies are one of the main detection targets in surveillance systems, usually needing…

Computer Vision and Pattern Recognition · Computer Science 2021-11-03 Mohammad Baradaran , Robert Bergevin

The increasing global crime rate, coupled with substantial human and property losses, highlights the limitations of traditional surveillance methods in promptly detecting diverse and unexpected acts of violence. Addressing this pressing…

Computer Vision and Pattern Recognition · Computer Science 2025-06-18 Aritra Dutta , Pushpita Boral , G Suseela

Anomaly detection in surveillance videos has been recently gaining attention. A challenging aspect of high-dimensional applications such as video surveillance is continual learning. While current state-of-the-art deep learning approaches…

Computer Vision and Pattern Recognition · Computer Science 2020-04-20 Keval Doshi , Yasin Yilmaz

A self-supervised multi-task learning (SSMTL) framework for video anomaly detection was recently introduced in literature. Due to its highly accurate results, the method attracted the attention of many researchers. In this work, we revisit…

The current concept of Smart Cities influences urban planners and researchers to provide modern, secured and sustainable infrastructure and give a decent quality of life to its residents. To fulfill this need video surveillance cameras have…

Computer Vision and Pattern Recognition · Computer Science 2021-08-10 Devashree R. Patrikar , Mayur Rajram Parate

Weakly-supervised anomaly detection can outperform existing unsupervised methods with the assistance of a very small number of labeled anomalies, which attracts increasing attention from researchers. However, existing weakly-supervised…

Machine Learning · Computer Science 2024-06-14 Xu Tan , Junqi Chen , Sylwan Rahardja , Jiawei Yang , Susanto Rahardja

Weakly Supervised Monitoring Anomaly Detection (WSMAD) utilizes weak supervision learning to identify anomalies, a critical task for smart city monitoring. However, existing multimodal approaches often fail to meet the real-time and…

Computer Vision and Pattern Recognition · Computer Science 2025-09-24 Wen-Dong Jiang , Chih-Yung Chang , Hsiang-Chuan Chang , Ji-Yuan Chen , Diptendu Sinha Roy

With the widespread deployment of video surveillance devices and the demand for intelligent system development, video anomaly detection (VAD) has become an important part of constructing intelligent surveillance systems. Expanding the…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Jiahao Lyu , Minghua Zhao , Jing Hu , Runtao Xi , Xuewen Huang , Shuangli Du , Cheng Shi , Tian Ma

Video anomaly detection is commonly used in many applications such as security surveillance and is very challenging.A majority of recent video anomaly detection approaches utilize deep reconstruction models, but their performance is often…

Computer Vision and Pattern Recognition · Computer Science 2021-05-28 Xuanzhao Wang , Zhengping Che , Bo Jiang , Ning Xiao , Ke Yang , Jian Tang , Jieping Ye , Jingyu Wang , Qi Qi

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…

Computer Vision and Pattern Recognition · Computer Science 2025-09-17 Seoik Jung , Taekyung Song , Joshua Jordan Daniel , JinYoung Lee , SungJun Lee

Self-supervised learning allows for better utilization of unlabelled data. The feature representation obtained by self-supervision can be used in downstream tasks such as classification, object detection, segmentation, and anomaly…

Computer Vision and Pattern Recognition · Computer Science 2020-06-18 Rabia Ali , Muhammad Umar Karim Khan , Chong Min Kyung

Despite the prevailing transition from single-task to multi-task approaches in video anomaly detection, we observe that many adopt sub-optimal frameworks for individual proxy tasks. Motivated by this, we contend that optimizing single-task…

Computer Vision and Pattern Recognition · Computer Science 2025-04-22 Guodong Shen , Yuqi Ouyang , Junru Lu , Yixuan Yang , Victor Sanchez