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Fast and Accurate Pedestrian Detection Using a Cascade of Multiple Features

  • Alaa Leithy
  • Mohamed N. Moustafa
  • Ayman Wahba
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6468)

Abstract

We propose a fast and accurate pedestrian detection framework based on cascaded classifiers with two complementary features. Our pipeline starts with a cascade of weak classifiers using Haar-like features followed by a linear SVM classifier relying on the Co-occurrence Histograms of Oriented Gradients (CoHOG). CoHOG descriptors have a strong classification capability but are extremely high dimensional. On the other hand, Haar features are computationally efficient but not highly discriminative for extremely varying texture and shape information such as pedestrians with different clothing and stances. Therefore, the combination of both classifiers enables fast and accurate pedestrian detection. Additionally, we propose reducing CoHOG descriptor dimensionality using Principle Component Analysis. The experimental results on the DaimlerChrysler benchmark dataset show that we can reach very close accuracy to the CoHOG-only classifier but in less than 1/1000 of its computational cost.

Keywords

Support Vector Machine Principle Component Analysis Linear Support Vector Machine Oriented Gradient Pedestrian Detection 
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 2011

Authors and Affiliations

  • Alaa Leithy
    • 1
  • Mohamed N. Moustafa
    • 1
  • Ayman Wahba
    • 1
  1. 1.Computer Engineering, Faculty of EngineeringAin Shams UniversityCairoEgypt

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