Signal converting apparatus

Details Signal converting apparatus Signal converting apparatus

1994-07-27

1996-02-27

Kostak, Victor R.

Television

Image signal processing circuitry specific to television

Special effects

348591, 348592, H04N 975

Patent

active

054952972

ABSTRACT:
A color region extracting portion detects a specific color region from an input foreground image signal. A mapping portion categorizes an output signal of the color region extracting portion as a class. A high level resolution signal is generated with a predicting coefficient pre-learnt corresponding to the class. A threshold value Th is supplied from a terminal to a stretching portion. The stretch portion performs a stretching process. The stretching portion supplies a coefficient k as a key signal to a multiplier and a compensation signal generating portion. The compensation signal generating portion supplies a coefficient (1-k) to a multiplier. The multiplier multiplies the coefficient k by the coefficient (1-k) and outputs the result as a composite image of the foreground image and the background image.

REFERENCES:
patent: 4698666 (1987-10-01), Lake, Jr. et al.
patent: 4771192 (1988-09-01), Jackson
patent: 4947240 (1990-08-01), Hausdorfer
patent: 5051828 (1991-09-01), Chaplin
patent: 5070397 (1991-12-01), Wedderburn-Bisshop
patent: 5287093 (1994-02-01), Amano et al.

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