Video-centroid integrated circuit

Details Video-centroid integrated circuit Video-centroid integrated circuit

1996-06-27

2000-05-02

Tadayon, Bijan

Image analysis

Image sensing

382288, G06K 900

Patent

active

060582235

ABSTRACT:
An analog, single integrated circuit for providing centered video images. A light detector array which can be, e.g., a CCD or an array of phototransistors or silicon retinas, is scanned out to provide a video signal. Current summing lines along each row and column of the array are used as inputs to x and y position sensitive (computation) circuitry located on the edge of the pixel array. When the array utilizes silicon retinas, an absolute value circuit is added to restore low frequency information removed by the retinas to the current summing output. An on-chip sequencer uses the x and y position outputs to scan out the video image centered to the nearest pixel.

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Johns Hopkins APL Technical Digest; Kim Strohbehn, Richard C. Meitzler, Andreas G. Andreou and Robert E. Jenkins; Analog Image Processing With Silicon Retinas; 1994, pp. 178-187; Applied Physics Laboratory, Laurel, Maryland. (JHAPL-Tech.DIG.), vol. 15, No. 3, (Jul.-Sep. 1994).

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