Circuitry for correcting frame combed luminance signal for motio

Facsimile and static presentation processing – Static presentation processing – Attribute control

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358 36, H04N 9535, H04N 521

Patent

active

045970076

ABSTRACT:
A frame comb filter system includes circuitry for reducing motion induced artifacts in reproduced images. Frame comb filtered chrominance signal is line comb filtered to extract motion induced luminance cross components therein. The luminance cross components are added to frame comb filtered luminance signal to reduce motion induced luminance signal errors. The corrected luminance signal is then subtracted from composite video signal to produce the chrominance component of composite video.

REFERENCES:
patent: 4232330 (1980-11-01), Heitmann
patent: 4296436 (1981-10-01), Achiha
patent: 4343019 (1982-08-01), Lagoni
patent: 4498099 (1985-02-01), Pritchard
patent: 4498100 (1985-02-01), Bunting et al.
Pritchard, "ACCD Comb Filter for Color TV Receiver Picture Enhancement", RCA Review, vol. 41, Mar. 1980, pp. 3-28.
"A Motion-Adaptive System for Converting Color TV Signals into High Definition Signals", ITEJ, 7-20-80.

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