Helping a Bio-inspired Tactile Sensor System to Focus on the Essential

Insects use their antennae (feelers) as near-range sensors for orientation, object localization and communication. This paper presents further developments for an approach for an active tactile sensor system. This includes a hardware construction as well as a software implementation for interpreting the sensor readings. The discussed tactile sensor is able to detect an obstacle and its location. Furthermore the material properties of the obstacles are classified by application of neural networks. The focus of this paper lies in the development of a method which allows to determine automatically the part of the input data which is actually needed to fulfill the classification task. For that, non-negative matrix factorization is evaluated by quantifying the trade-off between classification accuracy and input (and network) dimension.

[1]  Karl Pearson F.R.S..  LIII. On lines and planes of closest fit to systems of points in space , 1901 .

[2]  Toshio Tsuji,et al.  Active antenna for contact sensing , 1998, IEEE Trans. Robotics Autom..

[3]  Makoto Kaneko,et al.  Vision-based active sensor using a flexible beam , 2001 .

[4]  Larry S. Davis,et al.  Human detection using partial least squares analysis , 2009, 2009 IEEE 12th International Conference on Computer Vision.

[5]  V. Dürr,et al.  The antennal motor system of the stick insect Carausius morosus: anatomy and antennal movement pattern during walking , 2001, Journal of Comparative Physiology A.

[6]  Makoto Kaneko,et al.  Dynamic contact sensing by flexible beam , 1998 .

[7]  Volker Dürr,et al.  Insectoid obstacle detection based on an active tactile approach , 2005 .

[8]  G. Isac.  Models and applications , 1992 .

[9]  Ozkan Bebek,et al.  Whisker Sensor Design for Three Dimensional Position Measurement in Robotic Assisted Beating Heart Surgery , 2007, Proceedings 2007 IEEE International Conference on Robotics and Automation.

[10]  Salomon Bochner,et al.  Fourier Transforms. (AM-19) , 1950 .

[11]  H. Sebastian Seung,et al.  Learning the parts of objects by non-negative matrix factorization , 1999, Nature.

[12]  André Frank Krause,et al.  Feel Like an Insect: A Bio-Inspired Tactile Sensor System , 2010, ICONIP.

[13]  André Frank Krause,et al.  Bionic Tactile Sensor for Near-Range Search, Localisation and Material Classification , 2007, AMS.

[14]  André Frank Krause,et al.  The stick insect antenna as a biological paragon for an actively moved tactile probe for obstacle detection , 2001 .

[15]  V. Dürr,et al.  Antennal movements and mechanoreception: neurobiology of active tactile sensors , 2005 .