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Neural network models of haptic shape perception

In English

Författare

Summary, in English

Three different models of tactile shape perception inspired by the human haptic system were tested using an 8 d.o.f. robot hand with 45 tactile sensors. One model is based on the tensor product of different proprioceptive and tactile signals and a self-organizing map (SOM). The two other models replace the tensor product operation with a novel self-organizing neural network, the Tensor-Multiple Peak Self-Organizing Map (T-MPSOM). The two T-MPSOM models differ in the procedure employed to calculate the neural activation. The computational models were trained and tested with a set of objects consisting of hard spheres, blocks and cylinders. All the models learned to map different shapes to different areas of the SOM, and the tensor product model as well as one of the T-MPSOM models also learned to discriminate individual test objects. (c) 2007 Elsevier B.V. All rights reserved.

Publiceringsår

2007

Språk

Engelska

Sidor

720-727

Publikation/Tidskrift/Serie

Robotics and Autonomous Systems

Volym

55

Issue

9

Dokumenttyp

Artikel i tidskrift

Förlag

Elsevier

Ämne

  • Computer Vision and Robotics (Autonomous Systems)

Nyckelord

  • robotic hand
  • tensor product
  • haptic perception
  • self-organizing map

Status

Published

Projekt

  • Ikaros: An infrastructure for system level modelling of the brain

ISBN/ISSN/Övrigt

  • ISSN: 0921-8890