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Multi-class Object Layout with Unsupervised Image Classification and Object Localization

  • Ser-Nam Lim
  • Gianfranco Doretto
  • Jens Rittscher
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6938)

Abstract

Recognizing the presence of object classes in an image, or image classification, has become an increasingly important topic of interest. Equally important, however, is also the capability to locate these object classes in the image. We consider in this paper an approach to these two related problems with the primary goal of minimizing the training requirements so as to allow for ease of adding new object classes, as opposed to approaches that favor training a suite of object-specific classifiers. To this end, we provide the analysis of an exemplar-based approach that leverages unsupervised clustering for classification purpose, and sliding window matching for localization. While such exemplar based approach by itself is brittle towards intraclass and viewpoint variations, we achieve robustness by introducing a novel Conditional Random Field model that facilitates a straightforward accept/reject decision of the localized object classes. Performance of our approach on the PASCAL Visual Object Challenge 2007 dataset demonstrates its efficacy.

Keywords

Point Cloud Test Image Object Class Conditional Random Field Unsupervised Cluster 
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

  • Ser-Nam Lim
    • 1
  • Gianfranco Doretto
    • 2
  • Jens Rittscher
    • 1
  1. 1.Computer Vision LabGE Global ResearchNiskayunaUSA
  2. 2.Dept. of CS & EEWest Virginia UniversityMorgantownUSA

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