3D object retrieval via range image queries in a bag-of-visual-words context

  • Authors:
  • Konstantinos Sfikas;Theoharis Theoharis;Ioannis Pratikakis

  • Affiliations:
  • Computer Graphics Laboratory, Department of Informatics and Telecommunications, University of Athens, Athens, Greece;Computer Graphics Laboratory, Department of Informatics and Telecommunications, University of Athens, Athens, Greece and IDI, NTNU, Trondheim, Norway;Department of Electrical and Computer Engineering, Democritus University of Thrace, Xanthi, Greece 67100

  • Venue:
  • The Visual Computer: International Journal of Computer Graphics
  • Year:
  • 2013

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Abstract

3D object retrieval based on range image queries that represent partial views of real 3D objects is presented. The complete 3D models of the database are described by a set of panoramic views, and a Bag-of-Visual-Words model is built using SIFT features extracted from them. To address the problem of partial matching, we suggest a histogram computation scheme, on the panoramic views, that represents local information by taking into account spatial context. Furthermore, a number of optimization techniques are applied throughout the process for enhancing the retrieval performance. Its superior performance is shown by evaluating it against state-of-the-art methods on standard datasets.