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Video Anomaly Detection(VAD) has been traditionally tackled in two main methodologies: the reconstruction-based approach and the prediction-based one. As the reconstruction-based methods learn to generalize the input image, the model merely…

计算机视觉与模式识别 · 计算机科学 2022-06-20 Joo-Yeon Lee , Woo-Jeoung Nam , Seong-Whan Lee

Change detection (CD) identifies scene changes from multi-temporal observations and is widely used in urban development and environmental monitoring. Most existing CD methods rely on supervised learning, making performance strongly…

计算机视觉与模式识别 · 计算机科学 2025-12-19 Ziqiang Zhu , Bowei Yang

Pre-trained vision-language models (VLMs) have enabled significant progress in open vocabulary computer vision tasks such as image classification, object detection and image segmentation. Some recent works have focused on extending VLMs to…

计算机视觉与模式识别 · 计算机科学 2025-10-14 Rohit Gupta , Mamshad Nayeem Rizve , Jayakrishnan Unnikrishnan , Ashish Tawari , Son Tran , Mubarak Shah , Benjamin Yao , Trishul Chilimbi

Video anomaly detection under video-level labels is currently a challenging task. Previous works have made progresses on discriminating whether a video sequencecontains anomalies. However, most of them fail to accurately localize the…

计算机视觉与模式识别 · 计算机科学 2021-04-15 Hui Lv , Chuanwei Zhou , Chunyan Xu , Zhen Cui , Jian Yang

Open-vocabulary object detection (OVOD) aims to detect known and unknown objects in the open world by leveraging text prompts. Benefiting from the emergence of large-scale vision--language pre-trained models, OVOD has demonstrated strong…

计算机视觉与模式识别 · 计算机科学 2026-03-30 Jiaming Liang , Yifeng Zhan , Chunlin Liu , Weihua Zheng , Bingye Peng , Qiwei Liang , Boyang Cai , Xiaochun Mai , Qiang Nie

Recent video anomaly detection research has expanded rapidly with an emphasis on general models of normality intended to work across many different scenes. While this focus has led to improvements in scalability and multi-scene…

计算机视觉与模式识别 · 计算机科学 2026-05-14 Furkan Mumcu , Michael J. Jones , Anoop Cherian , Yasin Yilmaz

In recent years, many works have addressed the problem of finding never-seen-before anomalies in videos. Yet, most work has been focused on detecting anomalous frames in surveillance videos taken from security cameras. Meanwhile, the task…

计算机视觉与模式识别 · 计算机科学 2021-12-15 Laura Kart , Niv Cohen

Audio-Visual Video Parsing (AVVP) entails the challenging task of localizing both uni-modal events (i.e., those occurring exclusively in either the visual or acoustic modality of a video) and multi-modal events (i.e., those occurring in…

计算机视觉与模式识别 · 计算机科学 2025-05-15 Yung-Hsuan Lai , Janek Ebbers , Yu-Chiang Frank Wang , François Germain , Michael Jeffrey Jones , Moitreya Chatterjee

Weakly supervised video anomaly detection aims to identify abnormal events in videos using only video-level labels. Recently, two-stage self-training methods have achieved significant improvements by self-generating pseudo labels and…

计算机视觉与模式识别 · 计算机科学 2022-12-09 Chen Zhang , Guorong Li , Yuankai Qi , Shuhui Wang , Laiyun Qing , Qingming Huang , Ming-Hsuan Yang

The considerable significance of Anomaly Detection (AD) problem has recently drawn the attention of many researchers. Consequently, the number of proposed methods in this research field has been increased steadily. AD strongly correlates…

计算机视觉与模式识别 · 计算机科学 2021-03-03 Bahram Mohammadi , Mahmood Fathy , Mohammad Sabokrou

Anomaly detection in videos is challenging due to the complexity, noise, and diverse nature of activities such as violence, shoplifting, and vandalism. While deep learning (DL) has shown excellent performance in this area, existing…

计算机视觉与模式识别 · 计算机科学 2024-08-05 Sabah Abdulazeez Jebur , Khalid A. Hussein , Haider Kadhim Hoomod , Laith Alzubaidi , Ahmed Ali Saihood , YuanTong Gu

As the most fundamental scene understanding tasks, object detection and segmentation have made tremendous progress in deep learning era. Due to the expensive manual labeling cost, the annotated categories in existing datasets are often…

计算机视觉与模式识别 · 计算机科学 2024-04-16 Chaoyang Zhu , Long Chen

In this paper, we address the challenging problem of single-scene, fully unsupervised video anomaly detection (VAD), where raw videos containing both normal and abnormal events are used directly for training and testing without any labels.…

计算机视觉与模式识别 · 计算机科学 2026-04-21 Yuang Geng , Junkai Zhou , Kang Yang , Pan He , Zhuoyang Zhou , Jose C. Principe , Joel Harley , Ivan Ruchkin

Video Anomaly Detection (VAD) aims to automatically analyze spatiotemporal patterns in surveillance videos collected from open spaces to detect anomalous events that may cause harm, such as fighting, stealing, and car accidents. However,…

计算机视觉与模式识别 · 计算机科学 2025-07-01 Yang Liu , Siao Liu , Xiaoguang Zhu , Jielin Li , Hao Yang , Liangyu Teng , Juncen Guo , Yan Wang , Dingkang Yang , Jing Liu

Human-centric Video Anomaly Detection (VAD) aims to identify human behaviors that deviate from normal. At its core, human-centric VAD faces substantial challenges, such as the complexity of diverse human behaviors, the rarity of anomalies,…

计算机视觉与模式识别 · 计算机科学 2025-03-21 Armin Danesh Pazho , Shanle Yao , Ghazal Alinezhad Noghre , Babak Rahimi Ardabili , Vinit Katariya , Hamed Tabkhi

Safe autonomous systems in complex environments require robust road anomaly segmentation to identify unknown obstacles. However, existing approaches often rely on pixel-level statistics to determine whether a region appears anomalous. This…

计算机视觉与模式识别 · 计算机科学 2026-03-03 Zhuolin He , Jiacheng Tang , Jian Pu , Xiangyang Xue

Video anomaly detection (VAD) addresses the problem of automatically finding anomalous events in video data. The primary data modalities on which current VAD systems work on are monochrome or RGB images. Using depth data in this context…

计算机视觉与模式识别 · 计算机科学 2022-04-13 Pascal Schneider , Jason Rambach , Bruno Mirbach , Didier Stricker

Detecting anomalies in human-related videos is crucial for surveillance applications. Current methods primarily include appearance-based and action-based techniques. Appearance-based methods rely on low-level visual features such as color,…

计算机视觉与模式识别 · 计算机科学 2024-09-06 Chenglizhao Chen , Xinyu Liu , Mengke Song , Luming Li , Xu Yu , Shanchen Pang

The increasing popularity of compact and inexpensive cameras, e.g.~dash cameras, body cameras, and cameras equipped on robots, has sparked a growing interest in detecting anomalies within dynamic scenes recorded by moving cameras. However,…

计算机视觉与模式识别 · 计算机科学 2023-08-15 Runyu Jiao , Yi Wan , Fabio Poiesi , Yiming Wang

While anomaly detection has made significant progress, generating detailed analyses that incorporate industrial knowledge remains a challenge. To address this gap, we introduce OmniAD, a novel framework that unifies anomaly detection and…

计算机视觉与模式识别 · 计算机科学 2025-05-29 Shifang Zhao , Yiheng Lin , Lu Han , Yao Zhao , Yunchao Wei