Four-Direction Residual Interpolation for Demosaicking

In this paper, we propose a four-direction residual interpolation (FDRI) method for color filter array interpolation. The proposed algorithm exploits a guided filtering process to generate the tentative image. The residual image is generated by exploiting the tentative and original images. We use an...

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Bibliographic Details
Published in:IEEE transactions on circuits and systems for video technology 2016-05, Vol.26 (5), p.881-890
Main Authors: Kim, Yonghoon, Jeong, Jechang
Format: Article
Language:English
Subjects:
Algorithms
Bayer pattern
color filter array (CFA) interpolation
demosaicking
directional interpolation
Filtering
Filtering algorithms
Image color analysis
Image edge detection
Image reconstruction
Interpolation
Laplace equations
residual interpolation
State of the art
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Summary:In this paper, we propose a four-direction residual interpolation (FDRI) method for color filter array interpolation. The proposed algorithm exploits a guided filtering process to generate the tentative image. The residual image is generated by exploiting the tentative and original images. We use an FDRI algorithm to more accurately estimate the missing pixel values; the estimated image is adaptively combined with a joint inverse gradient weight. Based on the experimental results, the proposed method provides a superior performance in terms of objective and subjective quality compared with the conventional state-of-the-art demosaicking methods.
ISSN:1051-8215
1558-2205
DOI:10.1109/TCSVT.2015.2428552