Image motion and change transducers and systems controlled there

Details Image motion and change transducers and systems controlled there Image motion and change transducers and systems controlled there

1974-07-08

1976-01-13

Britton, Howard W.

Telegraphy

Systems

Simplex-reversing periodic

178DIG33, H04N 718

Patent

active

039327035

ABSTRACT:
A selected area of an arbitrary image is scanned to derive analog video signals which are filtered and converted to binary signals which are compared with a signal representative of a reference image to produce a signal indicative of differences occurring between the scanned and reference images.

REFERENCES:
patent: 3465169 (1969-09-01), Foerster
patent: 3686434 (1972-08-01), Lemelson
patent: 3743768 (1973-07-01), Copland
patent: 3781842 (1973-12-01), Campman

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