The Journal of Korean Institute of Communications and Information Sciences (한국통신학회논문지)
- Volume 21 Issue 6
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- Pages.1398-1415
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- 1996
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- 1226-4717(pISSN)
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- 2287-3880(eISSN)
Color image restoration for a single-CCD color camcorder system
단일 CCD 컬러 캠코더 시스템을 위한 컬러 영상복원
- Na, Woon (Media Team, Micro Devices Business, Samsung Electronics) ;
- Park, Yong-Cheol (Media Team, Micro Devices Business, Samsung Electronics) ;
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Paik, Joon-Ki
(Department of Electronic Engineering, Chung-Ang University)
- Published : 1996.06.01
Abstract
Instead of using three charge-coupled devices (CCDs) for the corresponding color channels, most consumer's most consummer's color macmorders reconstruct color images by using only one CCD with a color filter array (CFA), which periodically samples different color signals. By this reson the resulting image cannot produce the full resolution of the input image. More sepecifically, a single-CCD color camcorder reconstructs red, greed, and blue color channels from a color filter array followed by a CCD. During the reconstruction process, color cross-talk among channels (interchannel distortion) and eriodically space-verying blur (intrachannel distortion) occur. The proposed restoration system reduces distortions due to interchannel interference, and then restores each color channel by removing the corresponding intrachannel distortion. Experimental results show that the proposedsystem provides the improved image in oth objective and subjective senses. A major advantage of the proposed system is feasible to real-time image improvement because it can be implemented by a finite impulse response (FIR) filter structure.
Keywords