Motion filter for digital television system

Details Motion filter for digital television system Motion filter for digital television system

1991-11-19

1993-08-17

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358105, 358133, 358166, 358167, H06N 521

Patent

active

052374130

ABSTRACT:
A method and apparatus for processing fields of a video signal that are to be combined into a frame, compressed and communicated over a digital communications system. The processing technique increases the spatial correlation between pixels at a cost of slightly reduced resolution in areas of the frame where there is movement. The method employs a motion detector to separate moving and non-moving areas of the frame. A simple combination of lines from a first field and a second field can be used in static areas. In moving areas, a digital filter is applied to the fields to increase correlation in the resulting field. A digital compression technique such as vector quantization is applied to the resulting frame-based signal.

REFERENCES:
patent: 4716462 (1987-12-01), Wargo
patent: 4733297 (1988-03-01), Katsumata
patent: 4740842 (1988-04-01), Annegarn
patent: 4752826 (1988-06-01), Barnett
patent: 4864398 (1989-09-01), Avis

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