Color video camera signal processing circuit

Details Color video camera signal processing circuit Color video camera signal processing circuit

1984-09-14

1987-01-20

Masinick, Michael A.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 41, 358 29, 358 51, 358 43, H04N 704, H04N 964

Patent

active

046383522

ABSTRACT:
A color video camera processing circuit is provided with a circuit for generating an intensity signal containing color signals from photo-sensors at predetermined proportions, and a circuit for generating color difference signals on the basis of the color signals independently from the intensity signal. A color video signal is generated on the basis of the intensity signal and the color difference signals. A color reproducibility and Moire or the color reproducibility and an S/N ratio are improved. The Moire is significantly suppressed by rendering products of ratios of sensitivities of the photo-sensors and component ratios of the color signals to be summed to be substantially equal.

REFERENCES:
patent: 4166280 (1979-08-01), Poole
patent: 4395730 (1983-07-01), Shen
patent: 4437111 (1984-03-01), Inai et al.
patent: 4480266 (1984-10-01), Hashimoto
patent: 4504854 (1985-03-01), Masuda
patent: 4506290 (1985-03-01), Hashimoto
All Solid State Color Camera with Single-Chip MOS Imager; Nabeyama et al; IEEE Trans. on Consumer Electronics; vol. 1, CE-27; Feb. 1981.
PAL System Solid State Color Camera with Single Chip MOS Imager; Masuda et al; IEEE International Conference on Consumer Eletronics; Digest of Technical Paper, pp. 154-155; Jun. 9, 1983.

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