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Hybrid color filter array demosaicking for effective artifact suppression

[+] Author Affiliations
Lanlan Chang

Nanyang Technological University, School of Electrical and Electronic Engineering, Nanyang Avenue, 639798, Singapore

Yap-Peng Tan

Nanyang Technological University, School of Electrical and Electronic Engineering, Nanyang Avenue, 639798, Singapore

J. Electron. Imaging. 15(1), 013003 (March 15, 2006). doi:10.1117/1.2183325
History: Received February 03, 2005; Revised August 15, 2005; Accepted August 24, 2005; Published March 15, 2006
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Color filter array (CFA) demosaicking is an essential process for restoring full-color images from incomplete color samples acquired by single-sensor digital cameras. We present two main contributions to CFA demosaicking. First, we analyze the causes of two main types of CFA demosaicking artifacts and examine the schemes that are effective in suppressing them, respectively. Second, by combining and extending the core merits of the schemes examined, we compose a new CFA demosaicking algorithm to suppress as many demosaicking artifacts as possible and obtain full-color images of high quality. Experiments using a large variety of test images have been conducted, and the results show that the proposed method outperforms the existing state-of-the-art methods both visually and in terms of peak signal-to-noise ratio.

© 2006 SPIE and IS&T

Citation

Lanlan Chang and Yap-Peng Tan
"Hybrid color filter array demosaicking for effective artifact suppression", J. Electron. Imaging. 15(1), 013003 (March 15, 2006). ; http://dx.doi.org/10.1117/1.2183325


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