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Generative Cooperative Learning for Unsupervised Video Anomaly Detection
2022 IEEE/CVF Conference on Computer Vision and Pattern Recognition
  • M. Zaigham Zaheer, Electronics And Telecommunications Research Institute & Univ. Of Science And Technology & ETH Zurich, Switzerland & Mohamed Bin Zayed University Of Artificial Intelligence
  • Arif Mahmood, Information Technology University, Lahore, Pakistan
  • Muhammad Haris Khan, Mohamed bin Zayed University of Artificial Intelligence
  • Mattia Segù, ETH Zurich, Switzerland
  • Fisher Yu, ETH Zurich, Switzerland
  • Seung-Ik Lee, Electronics And Telecommunications Research Institute & Univ. Of Science And Technology
Document Type
Conference Proceeding
Abstract

Video anomaly detection is well investigated in weakly-supervised and one-class classification (OCC) settings. However, unsupervised video anomaly detection methods are quite sparse, likely because anomalies are less frequent in occurrence and usually not well-defined, which when coupled with the absence of ground truth supervision, could adversely affect the performance of the learning algorithms. This problem is challenging yet rewarding as it can completely eradicate the costs of obtaining laborious annotations and enable such systems to be deployed without human intervention. To this end, we propose a novel unsupervised Generative Cooperative Learning (GCL) approach for video anomaly detection that exploits the low frequency of anomalies towards building a cross-supervision between a generator and a discriminator. In essence, both networks get trained in a cooperative fashion, thereby allowing unsupervised learning. We conduct extensive experiments on two large-scale video anomaly detection datasets, UCF crime and ShanghaiTech. Consistent improvement over the existing state-of-the-art unsupervised and OCC methods corroborate the effectiveness of our approach. © 2022 IEEE.

DOI
10.1109/CVPR52688.2022.01433
Publication Date
9-27-2022
Keywords
  • Large dataset,
  • Learning algorithms,
  • Machine learning,
  • Computer Vision and Pattern Recognition (cs.CV),
  • Anomaly detection
Comments

Open access version, available at Computer Vision Foundation.

Citation Information
M. Z. Zaheer, A. Mahmood, M. H. Khan, M. Segu, F. Yu and S. -I. Lee, "Generative Cooperative Learning for Unsupervised Video Anomaly Detection," 2022 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), New Orleans, LA, USA, 2022, pp. 14724-14734, doi: 10.1109/CVPR52688.2022.01433.