Direction selective two-dimensional analog circuits using biomedical vision model

  • Authors:

  • Masashi Kawaguchi;Kazuyuki Kondo;Takashi Jimbo;Masayoshi Umeno

  • Affiliations:

  • Department of Electrical Engineering, Suzuka National College of Technology, Mie, Japan;Department of Electrical Engineering, Suzuka National College of Technology, Mie, Japan;Department of Environmental Technology and Urban Planning Graduate School of Engineering, Nagoya Institute of Technology, Nagoya, Japan;Department of Electronic Engineering, Chubu University, Kasugai, Aichi, Japan

  • Venue:
  • ICANN/ICONIP'03 Proceedings of the 2003 joint international conference on Artificial neural networks and neural information processing
  • Year:
  • 2003

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Abstract

We propose herein a motion detection artificial vision model which uses analog electronic circuits. The proposed model is comprised of four layers. The first layer is a differentiation circuit of the large CR coefficient, and the second layer is a differentiation circuit of the small CR coefficient. Thus, the speed of the movement object is detected. The third layer is a difference circuit for detecting the movement direction, and the fourth layer is a multiple circuit for detecting pure motion output. We first designed a one-dimensional model, which we later enhanced to obtain a two-dimensional model. The model was shown to be capable of detecting a movement object in the image. Moreover, the proposed model can be used to detect two or more objects, which is advantageous for detection in an environment in which several objects are moving in multiple directions simultaneously.