Probabilistic Pose Recovery Using Learned Hierarchical Object Models

  • Renaud Detry
  • Nicolas Pugeault
  • Justus Piater
Part of the Lecture Notes in Computer Science book series (LNCS, volume 5329)

Abstract

This paper presents a probabilistic representation for 3D objects, and details the mechanism of inferring the pose of real-world objects from vision. Our object model has the form of a hierarchy of increasingly expressive 3D features, and probabilistically represents 3D relations between these. Features at the bottom of the hierarchy are bound to local perceptions; while we currently only use visual features, our method can in principle incorporate features from diverse modalities within a coherent framework. Model instances are detected using a Nonparametric Belief Propagation algorithm which propagates evidence through the hierarchy to infer globally consistent poses for every feature of the model. Belief updates are managed by an importance-sampling mechanism that is critical for efficient and precise propagation. We conclude with a series of pose estimation experiments on real objects, along with quantitative performance evaluation.

Keywords

Computer vision 3D object representation pose estimation Nonparametric Belief Propagation 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2008

Authors and Affiliations

  • Renaud Detry
    • 1
  • Nicolas Pugeault
    • 2
  • Justus Piater
    • 1
  1. 1.Université de LiègeLiègeBelgium
  2. 2.University of Southern Denmark, Odense, Denmark,The University of Edinburgh,EdinburghScotland, UK

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