Hierarchical semantic contrast for scene-aware video anomaly detection

S Sun, X Gong - Proceedings of the IEEE/cvf conference on …, 2023 - openaccess.thecvf.com
Increasing scene-awareness is a key challenge in video anomaly detection (VAD). In this
work, we propose a hierarchical semantic contrast (HSC) method to learn a scene-aware …

Feature prediction diffusion model for video anomaly detection

C Yan, S Zhang, Y Liu, G Pang… - Proceedings of the …, 2023 - openaccess.thecvf.com
Anomaly detection in the video is an important research area and a challenging task in real
applications. Due to the unavailability of large-scale annotated anomaly events, most …

Scale-aware spatio-temporal relation learning for video anomaly detection

G Li, G Cai, X Zeng, R Zhao - European Conference on Computer Vision, 2022 - Springer
Recent progress in video anomaly detection (VAD) has shown that feature discrimination is
the key to effectively distinguishing anomalies from normal events. We observe that many …

Mist: Multiple instance self-training framework for video anomaly detection

JC Feng, FT Hong, WS Zheng - Proceedings of the IEEE …, 2021 - openaccess.thecvf.com
Weakly supervised video anomaly detection (WS-VAD) is to distinguish anomalies from
normal events based on discriminative representations. Most existing works are limited in …

Cloze test helps: Effective video anomaly detection via learning to complete video events

G Yu, S Wang, Z Cai, E Zhu, C Xu, J Yin… - Proceedings of the 28th …, 2020 - dl.acm.org
As a vital topic in media content interpretation, video anomaly detection (VAD) has made
fruitful progress via deep neural network (DNN). However, existing methods usually follow a …

Video anomaly detection based on spatio-temporal relationships among objects

Y Wang, T Liu, J Zhou, J Guan - Neurocomputing, 2023 - Elsevier
Video anomaly detection is to automatically identify predefined anomalous contents (eg
abnormal objects, behaviors and scenes) in videos. The performance of video anomaly …

Video event restoration based on keyframes for video anomaly detection

Z Yang, J Liu, Z Wu, P Wu, X Liu - Proceedings of the IEEE …, 2023 - openaccess.thecvf.com
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 …

Open-vocabulary video anomaly detection

P Wu, X Zhou, G Pang, Y Sun, J Liu… - Proceedings of the …, 2024 - openaccess.thecvf.com
Current video anomaly detection (VAD) approaches with weak supervisions are inherently
limited to a closed-set setting and may struggle in open-world applications where there can …

A new comprehensive benchmark for semi-supervised video anomaly detection and anticipation

C Cao, Y Lu, P Wang, Y Zhang - Proceedings of the IEEE …, 2023 - openaccess.thecvf.com
Semi-supervised video anomaly detection (VAD) is a critical task in the intelligent
surveillance system. However, an essential type of anomaly in VAD named scene …

Learning appearance-motion normality for video anomaly detection

Y Liu, J Liu, M Zhao, D Yang, X Zhu… - 2022 IEEE International …, 2022 - ieeexplore.ieee.org
Video anomaly detection is a challenging task in the Computer vision community. Most
single task-based methods do not consider the independence of unique spatial and …