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Object Detection and Localization Using Local and Global Features

  • Kevin Murphy
  • Antonio Torralba
  • Daniel Eaton
  • William Freeman
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4170)

Abstract

Traditional approaches to object detection only look at local pieces of the image, whether it be within a sliding window or the regions around an interest point detector. However, such local pieces can be ambiguous, especially when the object of interest is small, or imaging conditions are otherwise unfavorable. This ambiguity can be reduced by using global features of the image — which we call the “gist” of the scene — as an additional source of evidence. We show that by combining local and global features, we get significantly improved detection rates. In addition, since the gist is much cheaper to compute than most local detectors, we can potentially gain a large increase in speed as well.

Keywords

Object Detection Global Feature Object Class Local Detector Interest Point Detector 
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 2006

Authors and Affiliations

  • Kevin Murphy
    • 1
  • Antonio Torralba
    • 2
  • Daniel Eaton
    • 1
  • William Freeman
    • 2
  1. 1.Department of Computer ScienceUniversity of British Columbia 
  2. 2.Computer Science and AI LabMIT 

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