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Multi-task learning based video anomaly detection methods combine multiple proxy tasks in different branches to detect video anomalies in different situations. Most existing methods either do not combine complementary tasks to effectively…

Computer Vision and Pattern Recognition · Computer Science 2023-05-12 Mohammad Baradaran , Robert Bergevin

Weakly supervised instance segmentation reduces the cost of annotations required to train models. However, existing approaches which rely only on image-level class labels predominantly suffer from errors due to (a) partial segmentation of…

Computer Vision and Pattern Recognition · Computer Science 2021-03-25 Qing Liu , Vignesh Ramanathan , Dhruv Mahajan , Alan Yuille , Zhenheng Yang

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…

Computer Vision and Pattern Recognition · Computer Science 2024-08-05 Sabah Abdulazeez Jebur , Khalid A. Hussein , Haider Kadhim Hoomod , Laith Alzubaidi , Ahmed Ali Saihood , YuanTong Gu

Hateful videos present serious risks to online safety and real-world well-being, necessitating effective detection methods. Although multimodal classification approaches integrating information from several modalities outperform unimodal…

Computer Vision and Pattern Recognition · Computer Science 2025-09-18 Jiangbei Yue , Shuonan Yang , Tailin Chen , Jianbo Jiao , Zeyu Fu

Recently, weakly supervised video anomaly detection (WS-VAD) has emerged as a contemporary research direction to identify anomaly events like violence and nudity in videos using only video-level labels. However, this task has substantial…

Computer Vision and Pattern Recognition · Computer Science 2024-12-31 Ayush Ghadiya , Purbayan Kar , Vishal Chudasama , Pankaj Wasnik

This paper introduces a novel approach named CrossVideo, which aims to enhance self-supervised cross-modal contrastive learning in the field of point cloud video understanding. Traditional supervised learning methods encounter limitations…

Computer Vision and Pattern Recognition · Computer Science 2024-01-30 Yunze Liu , Changxi Chen , Zifan Wang , Li Yi

The accurate prediction of danger levels in video content is critical for enhancing safety and security systems, particularly in environments where quick and reliable assessments are essential. In this study, we perform a comparative…

Artificial Intelligence · Computer Science 2024-10-28 Pranav Gupta , Pratham Gohil , Sridhar S

Despite significant progress in semi-supervised learning for image object detection, several key issues are yet to be addressed for video object detection: (1) Achieving good performance for supervised video object detection greatly depends…

Computer Vision and Pattern Recognition · Computer Science 2023-11-14 Tanvir Mahmud , Chun-Hao Liu , Burhaneddin Yaman , Diana Marculescu

We present an efficient method for detecting anomalies in videos. Recent applications of convolutional neural networks have shown promises of convolutional layers for object detection and recognition, especially in images. However,…

Computer Vision and Pattern Recognition · Computer Science 2017-01-09 Yong Shean Chong , Yong Haur Tay

Video anomaly detection (VAD) has been paid increasing attention due to its potential applications, its current dominant tasks focus on online detecting anomalies% at the frame level, which can be roughly interpreted as the binary or…

Computer Vision and Pattern Recognition · Computer Science 2024-02-29 Peng Wu , Jing Liu , Xiangteng He , Yuxin Peng , Peng Wang , Yanning Zhang

This paper focuses on the weakly-supervised audio-visual video parsing task, which aims to recognize all events belonging to each modality and localize their temporal boundaries. This task is challenging because only overall labels…

Computer Vision and Pattern Recognition · Computer Science 2022-08-02 Haoyue Cheng , Zhaoyang Liu , Hang Zhou , Chen Qian , Wayne Wu , Limin Wang

Video Anomaly Detection (VAD) automates the identification of unusual events, such as security threats in surveillance videos. In real-world applications, VAD models must effectively operate in cross-domain settings, identifying rare…

Computer Vision and Pattern Recognition · Computer Science 2024-08-12 Yashika Jain , Ali Dabouei , Min Xu

Recent developments in image classification and natural language processing, coupled with the rapid growth in social media usage, have enabled fundamental advances in detecting breaking events around the world in real-time. Emergency…

Machine Learning · Computer Science 2020-04-13 Mahdi Abavisani , Liwei Wu , Shengli Hu , Joel Tetreault , Alejandro Jaimes

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

Video action recognition is a challenging but important task for understanding and discovering what the video does. However, acquiring annotations for a video is costly, and semi-supervised learning (SSL) has been studied to improve…

Computer Vision and Pattern Recognition · Computer Science 2025-03-05 Seokun Kang , Taehwan Kim

We present a novel dataset aimed at advancing danger analysis and assessment by addressing the challenge of quantifying danger in video content and identifying how human-like a Large Language Model (LLM) evaluator is for the same. This is…

Computer Vision and Pattern Recognition · Computer Science 2025-03-03 Pranav Gupta , Advith Krishnan , Naman Nanda , Ananth Eswar , Deeksha Agarwal , Pratham Gohil , Pratyush Goel

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

Deepfake videos present an increasing threat to society with potentially negative impact on criminal justice, democracy, and personal safety and privacy. Meanwhile, detecting deepfakes, at scale, remains a very challenging task that often…

Computer Vision and Pattern Recognition · Computer Science 2024-06-24 Mulin Tian , Mahyar Khayatkhoei , Joe Mathai , Wael AbdAlmageed

Sports video analysis is a prevalent research topic due to the variety of application areas, ranging from multimedia intelligent devices with user-tailored digests up to analysis of athletes' performance. The Sports Video task is part of…

Computer Vision and Pattern Recognition · Computer Science 2021-12-22 Pierre-Etienne Martin , Jordan Calandre , Boris Mansencal , Jenny Benois-Pineau , Renaud Péteri , Laurent Mascarilla , Julien Morlier

Manipulated videos often contain subtle inconsistencies between their visual and audio signals. We propose a video forensics method, based on anomaly detection, that can identify these inconsistencies, and that can be trained solely using…

Computer Vision and Pattern Recognition · Computer Science 2023-03-29 Chao Feng , Ziyang Chen , Andrew Owens
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