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Abstract
With the purpose of automatic detection of crowd patterns including abrupt and abnormal changes, a novel approach for extracting motion textures from dynamic Spatio-Temporal Volume (STV) blocks formulated by live video streams has been proposed. This paper starts from introducing the common approach for STV construction and corresponding Spatio-Temporal Texture (STT) extraction techniques. Next the crowd motion information contained within the random STT slices are evaluated based on the information entropy theory to cull the static background and noises occupying most of the STV spaces. A preprocessing step using Gabor filtering for improving the STT sampling efficiency and motion fidelity has been devised and tested. The technique has been applied on benchmarking video databases for proof-of-concept and performance evaluation. Preliminary results have shown encouraging outcomes and promising potentials for its real-world crowd monitoring and control applications.
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Published on 01/01/2017
Volume 2017, 2017
DOI: 10.23919/IConAC.2017.8082025
Licence: CC BY-NC-SA license
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