NDLI: New joint demosaicing and zooming algorithm for color filter array

Content Provider	IEEE Xplore Digital Library
Author	Kuo-Liang Chung Wei-Jen Yang Pang-Yen Chen Wen-Ming Yan Chiou-Shann Fuh
Copyright Year	1975
Abstract	This paper presents a new joint demosaicing and zooming algorithm for digital cameras, each equipped with a single CCD/CMOS sensor and a color filter array (CFA). According to the proposed adaptive heterogeneity projection masks and Sobel- and luminance estimation-based masks, we can extract edge information of each pixel in terms of the direction of variation and the gradient from the mosaic image directly and accurately, and the extracted more accurate edge information will be utilized to assist the design of our proposed new joint demosaicing and zooming algorithm. Based on twenty-four popular testing mosaic images, our proposed new zooming algorithm has better image quality performance in terms of two objective color image quality measures, the color peak signal-to-noise ratio (CPSNR) and the S-CIELAB DeltaE^* _ab metric, and one subjective color image quality measure, the color artifacts, when compared with several previous zooming algorithms.
Sponsorship	IEEE Consumer Electronics Society
File Size	818251
File Format	PDF
ISSN	00983063
Volume Number	55
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-08-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Sensor arrays Data mining Color Digital cameras Charge coupled devices CMOS image sensors Digital filters Pixel Algorithm design and analysis Testing Zooming algorithm Color filter array Demosaicing algorithm Mosaic images
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Media Technology

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