A SOLID Case for Active Bayesian Perception in Robot Touch

  • Nathan F. Lepora
  • Uriel Martinez-Hernandez
  • Tony J. Prescott
Conference paper

DOI: 10.1007/978-3-642-39802-5_14

Part of the Lecture Notes in Computer Science book series (LNCS, volume 8064)
Cite this paper as:
Lepora N.F., Martinez-Hernandez U., Prescott T.J. (2013) A SOLID Case for Active Bayesian Perception in Robot Touch. In: Lepora N.F., Mura A., Krapp H.G., Verschure P.F.M.J., Prescott T.J. (eds) Biomimetic and Biohybrid Systems. Living Machines 2013. Lecture Notes in Computer Science, vol 8064. Springer, Berlin, Heidelberg

Abstract

In a series of papers, we have formalized a Bayesian perception approach for robotics based on recent progress in understanding animal perception. The main principle is to accumulate evidence for multiple perceptual alternatives until reaching a preset belief threshold, formally related to sequential analysis methods for optimal decision making. Here, we extend this approach to active perception, by moving the sensor with a control strategy that depends on the posterior beliefs during decision making. This method can be used to solve problems involving Simultaneous Object Localization and IDentification (SOLID), or ‘where and what’. Considering an example in robot touch, we find that active perception gives an efficient, accurate solution to the SOLID problem for uncertain object locations; in contrast, passive Bayesian perception, which lacked sensorimotor feedback, then performed poorly. Thus, active perception can enable robust sensing in unstructured environments.

Keywords

Active perception tactile sensing localization robotics 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Nathan F. Lepora
    • 1
  • Uriel Martinez-Hernandez
    • 1
  • Tony J. Prescott
    • 1
  1. 1.Sheffield Center for Robotics (SCentRo)University of SheffieldUK

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