A Programmable Artificial Retina

@article{bzd_jssc93,
    author  = "Bernard, T. M. and Zavidovique, B. Y. and Devos, F. J. ",
    title   = "A Programmable Artificial Retina",
    journal = "IEEE Journal of Solid-State Circuits",
    volume  = "28",
    number  = "7",
    pages   = "789-798",
    month   = jul,
    year    = 1993
}

Abstract
An artificial retina is a device which intimately associates an imager with processing facilities on a monolithic circuit. Yet, except for simple environments and applications, analog hardware will not suffice to process and compact the raw image flow from the photosensitive array. To solve this output problem, an on-chip array of bare boolean processors with halftoning facilities might be used, providing versatility from programmability. The technological practicality and the computational efficiency of this "programmable boolean retina" concept are demonstrated. Using semistatic shifting structures together with some interaction circuitry, a minimal retina boolean processor can be built with as few as 28 transistors and controlled thanks to the distribution of "only" 6 clock signals. The successful design, integration and test of such a 65x76 boolean retina on a 50 mm2 CMOS 2um circuit are presented.

Paper

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