An edge-preserving interpolation in CCD color filter arrays

Yi Hong Yang*, Peng Hua Wang, Po-Ning Chen, Chia Lung Wu

*此作品的通信作者

研究成果: Conference contribution同行評審

4 引文 斯高帕斯(Scopus)

摘要

The color filter array (CFA) is a cost-effective structure widely adopted in modern digital still cameras (DSC). Because some color information has been filtered out, interpolation process is required to retrieve the original image. In literature, bilinear interpolation is commonly used due to its simplicity. No cross-channel computations are necessary in bilinear interpolation. By taking into consideration of inter-channel correlation, Pei and Lam improved the bilinear interpolation without increasing much of computational complexity. Both approaches however suffer certain edge-aliasing effect by reason of their average (or lowpass) nature. In order to eliminate such edge-aliasing, a new interpolation method is proposed in this work. By excluding extreme neighbor pixels before the average operation, the edge can now be better preserved. Experiment results show that the proposed interpolation method not only preserves the object edges visually but generally gives smaller mean-square errors.

原文English
主出版物標題2010 IEEE International Conference on Imaging Systems and Techniques, IST 2010 - Proceedings
頁面468-471
頁數4
DOIs
出版狀態Published - 18 10月 2010
事件2010 IEEE International Conference on Imaging Systems and Techniques, IST 2010 - Thessaloniki, Greece
持續時間: 1 7月 20102 7月 2010

出版系列

名字2010 IEEE International Conference on Imaging Systems and Techniques, IST 2010 - Proceedings

Conference

Conference2010 IEEE International Conference on Imaging Systems and Techniques, IST 2010
國家/地區Greece
城市Thessaloniki
期間1/07/102/07/10

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