Joint temporal and spatial color demosaic

Xiaolin Wu; Ning Zhang

doi:10.1117/12.476748

16 May 2003 Joint temporal and spatial color demosaic

Xiaolin Wu, Ning Zhang

Proceedings Volume 5017, Sensors and Camera Systems for Scientific, Industrial, and Digital Photography Applications IV; (2003) https://doi.org/10.1117/12.476748
Event: Electronic Imaging 2003, 2003, Santa Clara, CA, United States

Abstract

Color demosaic of CCD data has been thoroughly studied for still digital cameras. But much to our surprise, there has seemingly been an absence of research on color demosaic techniques that are tailored to CCD video cameras. The temporal dimension of a sequence of colour mosaic images can reveal new information on the missing color components due to the subsampling of mosaic, which is otherwise unavailable in the spatial domain of individual frames. In the temporal approach of color demosaic a pixel of the current frame is to be matched to another in a reference frame via motion analysis such that the CCD camera samples the same position in different colors in the two different frames in question. As a result the color sample that is missing in spatial domain may be recovered from temporal domain. Or, even better, the intra-frame and inter-frame color demosaic techniques can be combined via data fusion to achieve more robust color restoration.

Citation Download Citation

Xiaolin Wu and Ning Zhang "Joint temporal and spatial color demosaic", Proc. SPIE 5017, Sensors and Camera Systems for Scientific, Industrial, and Digital Photography Applications IV, (16 May 2003); https://doi.org/10.1117/12.476748

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