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 [BibTeX] [Marc21]
Fast Human Detection from Joint Appearance and Foreground Feature Subset Covariances
Type of publication: Journal paper
Citation: Yao_CVIU_2011
Journal: Computer Vision and Image Understanding
Volume: 115
Number: 10
Year: 2011
Month: October
Pages: 1414-1426
Abstract: We present a fast method to detect humans from stationary surveillance videos. It is based on a cascade of LogitBoost classifiers which use covariance matrices as object descriptors. We have made several contributions. First, our method learns the correlation between appearance and foreground features and show that the human shape information contained in foreground observations can dramatically improve performance when used jointly with appearance cues. This contrasts with traditional approaches that exploit background subtraction as an attentive filter, by applying still image detectors only on foreground regions. As a second contribution, we show that using the covariance matrices of feature subsets rather than of the full set in boosting provides similar or better performance while significantly reducing the computation load. The last contribution is a simple image rectification scheme that removes the slant of people in images when dealing with wide angle cameras, allowing for the appropriate use of integral images. Extensive experiments on a large video set show that our approach performs much better than the attentive filter paradigm while processing 5 to 20 frames/sec. The efficiency of our subset approach with state-of-the-art results is also demonstrated on the INRIA human (static image) database.
Keywords: covariance matrices , human detection, image rectification , information fusion , learning, real-time, surveillance
Projects Idiap
Authors Yao, Jian
Odobez, Jean-Marc
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Total mark: 0
  • Yao_CVIU_2011.pdf