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An analog implementation of early visual processing in insects

Conference Paper


Abstract


  • An analog VLSI implementation which mimics the early visual processing stages in insects is described. The system is composed of sixty parallel channels of integrated photodetectors and processing elements. It serves as the front end processor for a motion detection chip. The photodetection circuitry includes p-well junction diodes on a 2μm CMOS process and a logarithmic compression to increase the dynamic range of the system. The processing elements consist of an analog differentiator behind each photodetector. The differentiators are low frequency and have been designed using subthreshold design methods.

Publication Date


  • 1993

Citation


  • Moini, A., Bouzerdoum, A., Yakovleff, A., Abbott, D., Kim, O., Eshraghian, K., & Bogner, R. E. (1993). An analog implementation of early visual processing in insects. In International Symposium on VLSI Technology, Systems, and Applications, Proceedings (pp. 283-287). doi:10.1109/VTSA.1993.263663

Scopus Eid


  • 2-s2.0-84935411909

Web Of Science Accession Number


Start Page


  • 283

End Page


  • 287

Abstract


  • An analog VLSI implementation which mimics the early visual processing stages in insects is described. The system is composed of sixty parallel channels of integrated photodetectors and processing elements. It serves as the front end processor for a motion detection chip. The photodetection circuitry includes p-well junction diodes on a 2μm CMOS process and a logarithmic compression to increase the dynamic range of the system. The processing elements consist of an analog differentiator behind each photodetector. The differentiators are low frequency and have been designed using subthreshold design methods.

Publication Date


  • 1993

Citation


  • Moini, A., Bouzerdoum, A., Yakovleff, A., Abbott, D., Kim, O., Eshraghian, K., & Bogner, R. E. (1993). An analog implementation of early visual processing in insects. In International Symposium on VLSI Technology, Systems, and Applications, Proceedings (pp. 283-287). doi:10.1109/VTSA.1993.263663

Scopus Eid


  • 2-s2.0-84935411909

Web Of Science Accession Number


Start Page


  • 283

End Page


  • 287