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Crowd Detection with a Multiview Sampler

  • Weina Ge
  • Robert T. Collins
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6315)

Abstract

We present a Bayesian approach for simultaneously estimating the number of people in a crowd and their spatial locations by sampling from a posterior distribution over crowd configurations. Although this framework can be naturally extended from single to multiview detection, we show that the naive extension leads to an inefficient sampler that is easily trapped in local modes. We therefore develop a set of novel proposals that leverage multiview geometry to propose global moves that jump more efficiently between modes of the posterior distribution. We also develop a statistical model of crowd configurations that can handle dependencies among people and while not requiring discretization of their spatial locations. We quantitatively evaluate our algorithm on a publicly available benchmark dataset with different crowd densities and environmental conditions, and show that our approach outperforms other state-of-the-art methods for detecting and counting people in crowds.

Keywords

Camera View Foreground Pixel Pedestrian Detection Crowd Density Angular Extent 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • Weina Ge
    • 1
  • Robert T. Collins
    • 1
  1. 1.The Pennsylvania State UniversityUniversity ParkUSA

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