Television – Camera – system and detail – Combined image signal generator and general image signal...
Patent
1995-03-30
1997-05-06
Hsia, Sherrie
Television
Camera, system and detail
Combined image signal generator and general image signal...
348266, 348237, 348641, H04N 5228, H04N 907
Patent
active
056275889
ABSTRACT:
An image is captured into a video signal by an array sensor with color stripes. The system first interprets the highest frequencies of the signal as an upper sideband of the I color component so as to double the recoverable bandwidth of color detail. From the upper sideband of the signal, the corresponding lower color sideband is predicted and its effect is then subtracted from the luminance component, from which, in turn, an image is generated. The resulting image is enhanced in sharpness and has fewer artifacts. Color may be demodulated from sensor signal and the predominant I color vector demodulated from the color carrier utilizing an asymmetric sideband filter.
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Carwell Robert M.
Hsia Sherrie
International Business Machines - Corporation
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