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Visual Anomaly Detection (VAD) aims to identify abnormal samples in images that deviate from normal patterns, covering multiple domains, including industrial, logical, and medical fields. Due to the domain gaps between these fields,…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Zhaopeng Gu , Bingke Zhu , Guibo Zhu , Yingying Chen , Ming Tang , Jinqiao Wang

Input aggregation is a simple technique used by state-of-the-art LiDAR 3D object detectors to improve detection. However, increasing aggregation is known to have diminishing returns and even performance degradation, due to objects…

Computer Vision and Pattern Recognition · Computer Science 2024-11-21 Chengjie Huang , Vahdat Abdelzad , Sean Sedwards , Krzysztof Czarnecki

As information becomes more accessible, user-generated videos are increasing in length, placing a burden on viewers to sift through vast content for valuable insights. This trend underscores the need for an algorithm to extract key video…

Computer Vision and Pattern Recognition · Computer Science 2024-12-13 Lingfeng Yang , Zhenyuan Chen , Xiang Li , Peiyang Jia , Liangqu Long , Jian Yang

Weakly-Supervised Video Anomaly Detection aims to identify anomalous events using only video-level labels, balancing annotation efficiency with practical applicability. However, existing methods often oversimplify the anomaly space by…

Computer Vision and Pattern Recognition · Computer Science 2025-12-30 Junhee Lee , ChaeBeen Bang , MyoungChul Kim , MyeongAh Cho

Nowadays, billions of videos are online ready to be viewed and shared. Among an enormous volume of videos, some popular ones are widely viewed by online users while the majority attract little attention. Furthermore, within each video,…

Computer Vision and Pattern Recognition · Computer Science 2018-04-10 Xinpeng Chen , Jingyuan Chen , Lin Ma , Jian Yao , Wei Liu , Jiebo Luo , Tong Zhang

Viewpoint change invariance and action temporal consistency are critical aspects for the effective deployment of human action detection of untrimmed videos. Existing appearance-based video detection methods often struggle with limited…

Computer Vision and Pattern Recognition · Computer Science 2026-05-22 Yannick Porto , Renato Martins , Thomas Chalumeau , Cedric Demonceaux

Detection Transformer (DETR) and Deformable DETR have been proposed to eliminate the need for many hand-designed components in object detection while demonstrating good performance as previous complex hand-crafted detectors. However, their…

Computer Vision and Pattern Recognition · Computer Science 2022-11-23 Qianyu Zhou , Xiangtai Li , Lu He , Yibo Yang , Guangliang Cheng , Yunhai Tong , Lizhuang Ma , Dacheng Tao

Existing semi-supervised video anomaly detection (VAD) methods often struggle with detecting complex anomalies involving object interactions and generally lack explainability. To overcome these limitations, we propose a novel VAD framework…

Computer Vision and Pattern Recognition · Computer Science 2026-03-02 Furkan Mumcu , Michael J. Jones , Anoop Cherian , Yasin Yilmaz

Recent advancements in AI-based multimedia generation have enabled the creation of hyper-realistic images and videos, raising concerns about their potential use in spreading misinformation. The widespread accessibility of generative…

Computer Vision and Pattern Recognition · Computer Science 2025-04-30 Joy Battocchio , Stefano Dell'Anna , Andrea Montibeller , Giulia Boato

Streaming anomaly detection refers to the problem of detecting anomalous data samples in streams of data. This problem poses challenges that classical and deep anomaly detection methods are not designed to cope with, such as conceptual…

Machine Learning · Computer Science 2022-10-12 Joseph Gallego-Mejia , Oscar Bustos-Brinez , Fabio Gonzalez

The popularity of streaming videos with live, high-action content has led to an increased interest in High Frame Rate (HFR) videos. In this work we address the problem of frame rate dependent Video Quality Assessment (VQA) when the videos…

Multimedia · Computer Science 2021-09-28 Pavan C Madhusudana , Neil Birkbeck , Yilin Wang , Balu Adsumilli , Alan C. Bovik

Long video understanding requires more than large context windows. It also needs a memory mechanism that decides what visual evidence to retain, keeps it searchable over long horizons, and grounds later reasoning in recoverable observations…

Computer Vision and Pattern Recognition · Computer Science 2026-05-19 Aiden Yiliu Li , Nels Numan , Anthony Steed

In this paper, we propose a new video object detector (VoD) method referred to as temporal feature aggregation and motion-aware VoD (TM-VoD), which produces a joint representation of temporal image sequences and object motion. The proposed…

Computer Vision and Pattern Recognition · Computer Science 2020-11-23 Junho Koh , Jaekyum Kim , Younji Shin , Byeongwon Lee , Seungji Yang , Jun Won Choi

Multiview applications endow final users with the possibility to freely navigate within 3D scenes with minimum-delay. A real feeling of scene navigation is enabled by transmitting multiple high-quality camera views, which can be used to…

Multimedia · Computer Science 2018-03-28 Xue Zhang , Laura Toni , Pascal Frossard , Yao Zhao , Chunyu Lin

Video anomaly detection (VAD) is a significant computer vision problem. Existing deep neural network (DNN) based VAD methods mostly follow the route of frame reconstruction or frame prediction. However, the lack of mining and learning of…

Computer Vision and Pattern Recognition · Computer Science 2023-04-12 Zhiwei Yang , Jing Liu , Zhaoyang Wu , Peng Wu , Xiaotao Liu

Video Anomaly Detection (VAD) aims to identify and locate deviations from normal patterns in video sequences. Traditional methods often struggle with substantial computational demands and a reliance on extensive labeled datasets, thereby…

Computer Vision and Pattern Recognition · Computer Science 2025-10-28 Zhaolin Cai , Fan Li , Ziwei Zheng , Yanjun Qin

In the era of big data, it is becoming common to have data with multiple modalities or coming from multiple sources, known as "multi-view data". Multi-view data are usually unlabeled and come from high-dimensional spaces (such as language…

Machine Learning · Computer Science 2016-09-28 Weixiang Shao , Lifang He , Chun-Ta Lu , Xiaokai Wei , Philip S. Yu

Deepfakes are synthetic media generated using deep generative algorithms and have posed a severe societal and political threat. Apart from facial manipulation and synthetic voice, recently, a novel kind of deepfakes has emerged with either…

Computer Vision and Pattern Recognition · Computer Science 2023-10-17 Vinaya Sree Katamneni , Ajita Rattani

Surveillance footage can catch a wide range of realistic anomalies. This research suggests using a weakly supervised strategy to avoid annotating anomalous segments in training videos, which is time consuming. In this approach only video…

Computer Vision and Pattern Recognition · Computer Science 2022-06-07 Kapil Deshpande , Narinder Singh Punn , Sanjay Kumar Sonbhadra , Sonali Agarwal

Video anomaly detection (VAD) aims to identify and ground anomalous behaviors or events in videos, serving as a core technology in the fields of intelligent surveillance and public safety. With the advancement of deep learning, the…

Computer Vision and Pattern Recognition · Computer Science 2025-07-30 Shibo Gao , Peipei Yang , Haiyang Guo , Yangyang Liu , Yi Chen , Shuai Li , Han Zhu , Jian Xu , Xu-Yao Zhang , Linlin Huang