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相关论文: Towards Open Set Video Anomaly Detection

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Video Anomaly Detection (VAD) remains a fundamental yet formidable task in the video understanding community, with promising applications in areas such as information forensics and public safety protection. Due to the rarity and diversity…

计算机视觉与模式识别 · 计算机科学 2025-03-25 Yang Liu , Hongjin Wang , Zepu Wang , Xiaoguang Zhu , Jing Liu , Peng Sun , Rui Tang , Jianwei Du , Victor C. M. Leung , Liang Song

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…

计算机视觉与模式识别 · 计算机科学 2021-08-09 Yu Tian , Guansong Pang , Yuanhong Chen , Rajvinder Singh , Johan W. Verjans , Gustavo Carneiro

Existing Video Anomaly Detection (VAD) methods typically rely on task-specific training, leading to strong domain dependency and high training costs. Moreover, most existing methods output only scalar anomaly scores, providing limited…

计算机视觉与模式识别 · 计算机科学 2026-05-25 Hyeongmuk Lim , Youngbum Hur

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…

计算机视觉与模式识别 · 计算机科学 2023-10-05 Luca Zanella , Benedetta Liberatori , Willi Menapace , Fabio Poiesi , Yiming Wang , Elisa Ricci

Anomaly detection suffered from the lack of anomalies due to the diversity of abnormalities and the difficulties of obtaining large-scale anomaly data. Semi-supervised anomaly detection methods are often used to solely leverage normal data…

计算机视觉与模式识别 · 计算机科学 2023-04-11 Jian Shi , Ni Zhang

Anomaly detection in surveillance videos has been recently gaining attention. Even though the performance of state-of-the-art methods on publicly available data sets has been competitive, they demand a massive amount of training data. Also,…

计算机视觉与模式识别 · 计算机科学 2020-04-07 Keval Doshi , Yasin Yilmaz

Video Anomaly Detection (VAD), aiming to identify abnormalities within a specific context and timeframe, is crucial for intelligent Video Surveillance Systems. While recent deep learning-based VAD models have shown promising results by…

计算机视觉与模式识别 · 计算机科学 2024-03-29 Hao Shen , Lu Shi , Wanru Xu , Yigang Cen , Linna Zhang , Gaoyun An

We present a meta-learning framework for weakly supervised anomaly detection in videos, where the detector learns to adapt to unseen types of abnormal activities effectively when only video-level annotations of binary labels are available.…

计算机视觉与模式识别 · 计算机科学 2022-03-28 Jaeyoo Park , Junha Kim , Bohyung Han

Anomaly detection in images plays a significant role for many applications across all industries, such as disease diagnosis in healthcare or quality assurance in manufacturing. Manual inspection of images, when extended over a monotonously…

计算机视觉与模式识别 · 计算机科学 2021-07-21 Vincent Wilmet , Sauraj Verma , Tabea Redl , Håkon Sandaker , Zhenning Li

Anomaly detection is critically important for intelligent surveillance systems to detect in a timely manner any malicious activities. Many video anomaly detection approaches using deep learning methods focus on a single camera video stream…

计算机视觉与模式识别 · 计算机科学 2020-10-07 Chongke Wu , Sicong Shao , Cihan Tunc , Salim Hariri

In recent years, Visual Anomaly Detection (VAD) has gained significant attention due to its ability to identify defects using only normal images during training. Many VAD models work without supervision but are still able to provide visual…

计算机视觉与模式识别 · 计算机科学 2026-03-17 Arianna Stropeni , Valentina Zaccaria , Francesco Borsatti , Davide Dalle Pezze , Manuel Barusco , Gian Antonio Susto

Deep anomaly detection models using a supervised mode of learning usually work under a closed set assumption and suffer from overfitting to previously seen rare anomalies at training, which hinders their applicability in a real scenario. In…

图像与视频处理 · 电气工程与系统科学 2020-10-26 Behzad Bozorgtabar , Dwarikanath Mahapatra , Guillaume Vray , Jean-Philippe Thiran

This paper proposed a novel anomaly detection (AD) approach of High-speed Train images based on convolutional neural networks and the Vision Transformer. Different from previous AD works, in which anomalies are identified with a single…

计算机视觉与模式识别 · 计算机科学 2022-03-30 Zhixue Wang , Yu Zhang , Lin Luo , Nan Wang

Anomaly detection is being regarded as an unsupervised learning task as anomalies stem from adversarial or unlikely events with unknown distributions. However, the predictive performance of purely unsupervised anomaly detection often fails…

机器学习 · 计算机科学 2014-01-27 Nico Goernitz , Marius Micha Kloft , Konrad Rieck , Ulf Brefeld

Previous approaches to detecting human anomalies in videos have typically relied on implicit modeling by directly applying the model to video or skeleton data, potentially resulting in inaccurate modeling of motion information. In this…

计算机视觉与模式识别 · 计算机科学 2023-09-28 Jian Xiao , Tianyuan Liu , Genlin Ji

Video anomaly detection (VAD) is a challenging task that detects anomalous frames in continuous surveillance videos. Most previous work utilizes the spatio-temporal correlation of visual features to distinguish whether there are…

计算机视觉与模式识别 · 计算机科学 2025-12-16 Guangyu Dai , Dong Chen , Siliang Tang , Yueting Zhuang

Video Anomaly Detection (VAD) is crucial for applications such as security surveillance and autonomous driving. However, existing VAD methods provide little rationale behind detection, hindering public trust in real-world deployments. In…

计算机视觉与模式识别 · 计算机科学 2024-07-23 Yuchen Yang , Kwonjoon Lee , Behzad Dariush , Yinzhi Cao , Shao-Yuan Lo

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…

计算机视觉与模式识别 · 计算机科学 2022-06-07 Kapil Deshpande , Narinder Singh Punn , Sanjay Kumar Sonbhadra , Sonali Agarwal

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

From a safety perspective, a machine learning method embedded in real-world applications is required to distinguish irregular situations. For this reason, there has been a growing interest in the anomaly detection (AD) task. Since we cannot…

机器学习 · 计算机科学 2021-04-21 JuneKyu Park , Jeong-Hyeon Moon , Namhyuk Ahn , Kyung-Ah Sohn