Video processing system featuring a choice between inter and int

Details Video processing system featuring a choice between inter and int Video processing system featuring a choice between inter and int

1993-11-04

1995-11-21

Kostak, Victor R.

Television

Image signal processing circuitry specific to television

Motion dependent key signal generation or scene change...

H04N 964

Patent

active

054692270

ABSTRACT:
In a video processing system having an intra-field processing mode which allows a better luminance-chrominance separation, and an inter-field processing mode which allows a better performance in the presence of motion in the color signals, wherein a motion-dependent choice is made between these modes, chrominance-difference signals (Ud, Vd) are derived from chrominance signals (U, V), and a first linear combination of the chrominance-difference signals (Ud', Vd) is derived when the V chrominance-difference signal (Vd) exceeds the U chrominance-difference signal (Ud'), and a second linear combination of the chrominance-difference signals (Ud', Vd) is derived in the opposite case, to obtain a motion signal (M) for the motion-dependent choice.

REFERENCES:
patent: 4546378 (1985-10-01), Annegarn
patent: 4651211 (1987-03-01), Weckenbrock et al.
patent: 4794454 (1988-12-01), Sugiyama et al.
patent: 4823184 (1989-04-01), Belmares-Sarabia et al.

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