System for reducing the visibility of the noise in television pi

Details System for reducing the visibility of the noise in television pi System for reducing the visibility of the noise in television pi

1979-12-31

1982-11-30

Martin, John C.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

H04N 521

Patent

active

043618537

ABSTRACT:
A television signal noise reduction system employs a movement detector for automatically selecting one of three parallel processing paths, the first of which passes the video signal without modification and the other two of which calculate different weighted averages of the current pixel and surrounding pixels from the current frame and the previous frame.

REFERENCES:
patent: 3009016 (1961-11-01), Graham
patent: 3716667 (1973-02-01), Connor et al.
patent: 3716670 (1973-02-01), Lowry
patent: 4064530 (1977-12-01), Kaiser et al.
patent: 4090221 (1978-05-01), Connor
Pease et al., "Exchange of Spatial and Temporal Resolution in Television Coding", The Bell System Technical Journal, Jan. 1971, pp. 191-199.

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