BROWSE
Detail
Conference Paper
CLAWS: Clustering Assisted Weakly Supervised Learning with Normalcy Suppression for Anomalous Event Detection
Cited 123 time in 
Share 
Share
- Authors
- Muhammad Zaigham Zaheer, Arif Mahmood, Marcella Astrid, Seung-Ik Lee
- Issue Date
- 2020-08
- Citation
- European Conference on Computer Vision (ECCV) 2020, pp.1-18
- Language
- English
- Type
- Conference Paper
- Abstract
- Learning to detect real-world anomalous events through video-level labels is a challenging task due to the rare occurrence of anomalies as well as noise in the labels. In this work, we propose a weakly supervised anomaly detection method which has manifold contributions including 1) a random batch based training procedure to reduce inter-batch correlation, 2) a normalcy suppression mechanism to minimize anomaly scores of the normal regions of a video by taking into account the overall information available in one training batch, and 3) a clustering distance based loss to contribute towards mitigating the label noise and to produce better anomaly representations by encouraging our model to generate distinct normal and anomalous clusters. The proposed method obtains 83.03% and 89.67% frame-level AUC performance on the UCF-Crime and ShanghaiTech datasets respectively, demonstrating its superiority over the existing state-of-the-art algorithms.
- KSP Keywords
- Anomalous event detection, Clustering distance, Detection Method, Distance-based, Frame-level, Label noise, Real-world, Suppression mechanism, Weakly supervised learning, anomaly detection, existing state