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  1. Proceedings of the 1st ACM international workshop on Multimodal pervasive video analysis (MPVA '10)
  2. Video topic modelling with behavioural segmentation
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Image-based indoor positioning system: fast image matching using omnidirectional panoramic images
Real time multiple people tracking and pose estimation
Video narrative authoring with motion inpainting
Efficient person identification using active cameras in a smartroom
Learning local features for age estimation on real-life faces
Spatial-temporal understanding of urban scenes through large camera network
3d gesture recognition applying long short-term memory and contextual knowledge in a CAVE
Space speaks: towards socially and personality aware visual surveillance
Modeling and recognition of complex multi-person interactions in video
Learning human pose in crowd
Video topic modelling with behavioural segmentation

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Video topic modelling with behavioural segmentation

Content Provider ACM Digital Library
Author Haines, Tom S. F. Xiang, Tao
Abstract Topic models such as Latent Dirichlet Allocation (LDA) are used extensively for modelling multi-object behaviour and anomaly detection in busy scenes. However, existing topic models suffer from the sensitivity problem, where they are unable to detect anomalies that are mixed in with large numbers of co-occurring normal behaviours. Also at issue is the localisation problem, where anomalies are detected but not localised within a given video clip. To address these two problems this paper proposes a novel region LDA model, which encodes the spatial awareness that is ignored by conventional topic models. Both scene decomposition and behavioural modelling are simultaneously performed. Consequentially, abnormality is detected per-region rather than for the entire scene, resolving both the sensitivity and localisation issues. Experiments conducted on busy real world scenes demonstrate the superiority of the proposed model.
Starting Page 53
Ending Page 58
Page Count 6
File Format PDF
ISBN 9781450301671
DOI 10.1145/1878039.1878051
Language English
Publisher Association for Computing Machinery (ACM)
Publisher Date 2010-10-29
Publisher Place New York
Access Restriction Subscribed
Subject Keyword Topic modeling Graphical model Abnormality detection Gibbs sampling Behavioural segmentation
Content Type Text
Resource Type Article
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