System for coring an image-representing signal

Details System for coring an image-representing signal System for coring an image-representing signal

1984-10-22

1985-06-11

Chin, Tommy P.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

H04N 514, H04N 521

Patent

active

045232300

ABSTRACT:
Noise reduction is achieved, without the introduction of noticeable artifacts in the displayed image, using (1) a non-ringing, non-aliasing, localized transfer, octave-band spectrum analyzer for separating the video signal representing the image into subspectra signals, (2) separate coring means for one or more of the analyzed subspectra signals, and (3) then a synthesizer employing one or more non-ringing, non-aliasing filters for deriving an output image-representing signal from all of the subspectra signals.

REFERENCES:
patent: 4163258 (1979-07-01), Ebihara
patent: 4442454 (1984-04-01), Powell
patent: 4463381 (1984-07-01), Powell

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