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An insect vision-based motion detection chip

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9 Author(s)
Moini, A. ; Dept. of Electr. & Electron. Eng., Adelaide Univ., SA, Australia ; Bouzerdoum, A. ; Eshraghian, K. ; Yakovleff, A.
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The architectural and circuit design aspects of a mixed analog/digital very large scale integration (VLSI) motion detection chip based on models of the insect visual system are described. The chip comprises two one-dimensional 64-cell arrays as well as front-end analog circuitry for early visual processing and digital control circuits. Each analog processing cell comprises a photodetector, circuits for spatial averaging and multiplicative noise cancellation, differentiation, and thresholding. The operation and configuration of the analog cells is controlled by digital circuits, thus implementing a reconfigurable architecture which facilitates the evaluation of several newly designed analog circuits. The chip has been designed and fabricated in a 1.2-μm CMOS process and occupies an area of 2×2 mm2

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Solid-State Circuits, IEEE Journal of  (Volume:32 ,  Issue: 2 )