Title :
A pixel mixture and restoration method for a single color CCD imager
Author :
Tsubaki, Ikuko ; Aizawa, Kiyoham
Author_Institution :
Dept. of Frontier Informatics, Tokyo Univ., Japan
Abstract :
This paper proposes demosaicing methods for video clip of digital still cameras (DSCs). In video clips of DSCs, pixel mixture is performed for saving readout time, which mixes together two pixels on CCD. Pixel mixture reduces the number of pixels to be read out from CCD, and it enables video rate read out from DSCs of more than a million pixels. In this paper, an iterative method is presented in order to recover the image. Our approach achieves the results of smaller mean square errors than conventional interpolation methods.
Keywords :
CCD image sensors; image colour analysis; image restoration; image segmentation; iterative methods; mean square error methods; video signal processing; CCD; DSC; demosaicing method; digital still cameras; iterative method; mean square errors; pixel mixture; restoration method; video clip; Charge coupled devices; Digital cameras; Filters; Image restoration; Informatics; Interleaved codes; Interpolation; Iterative methods; Mean square error methods; Pixel;
Conference_Titel :
Signals, Systems and Computers, 2004. Conference Record of the Thirty-Seventh Asilomar Conference on
Print_ISBN :
0-7803-8104-1
DOI :
10.1109/ACSSC.2003.1292262