IEEE Trans Image Process - A new color filter array with optimal properties for noiseless and noisy color image acquisition.

Tópicos

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Resumo

Digital color cameras acquire color images by means of a sensor on which a color filter array (CFA) is overlaid. The Bayer CFA dominates the consumer market, but there has recently been a renewed interest for the design of CFAs . However, robustness to noise is often neglected in the design, though it is crucial in practice. In this paper, we present a new 2 ? 3-periodic CFA which provides, by construction, the optimal tradeoff between robustness to aliasing, chrominance noise and luminance noise. Moreover, a simple and efficient linear demosaicking algorithm is described, which fully exploits the spectral properties of the CFA. Practical experiments confirm the superiority of our design, both in noiseless and noisy scenarios.

Resumo Limpo

digit color camera acquir color imag mean sensor color filter array cfa overlaid bayer cfa domin consum market recent renew interest design cfas howev robust nois often neglect design though crucial practic paper present new period cfa provid construct optim tradeoff robust alias chromin nois lumin nois moreov simpl effici linear demosaick algorithm describ fulli exploit spectral properti cfa practic experi confirm superior design noiseless noisi scenario

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