Demosaicing Method for Digital Cameras with White‐RGB Color Filter Array
Demosaicing, or color filter array (CFA) interpolation, estimates missing color channels of raw mosaiced images from a CFA to reproduce full‐color images. It is an essential process for single‐sensor digital cameras with CFAs. In this paper, a new demosaicing method for digital cameras with Bayer‐li...
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| Published in | ETRI journal Vol. 38; no. 1; pp. 164 - 173 |
|---|---|
| Main Authors | , , |
| Format | Journal Article |
| Language | English |
| Published |
Electronics and Telecommunications Research Institute (ETRI)
01.02.2016
한국전자통신연구원 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 1225-6463 2233-7326 |
| DOI | 10.4218/etrij.16.0114.1371 |
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| Abstract | Demosaicing, or color filter array (CFA) interpolation, estimates missing color channels of raw mosaiced images from a CFA to reproduce full‐color images. It is an essential process for single‐sensor digital cameras with CFAs. In this paper, a new demosaicing method for digital cameras with Bayer‐like W‐RGB CFAs is proposed. To preserve the edge structure when reproducing full‐color images, we propose an edge direction–adaptive method using color difference estimation between different channels, which can be applied to practical digital camera use. To evaluate the performance of the proposed method in terms of CPSNR, FSIM, and S‐CIELAB color distance measures, we perform simulations on sets of mosaiced images captured by an actual prototype digital camera with a Bayer‐like W‐RGB CFA. The simulation results show that the proposed method demosaics better than a conventional one by approximately +22.4% CPSNR, +0.9% FSIM, and +36.7% S‐CIELAB distance. |
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| AbstractList | Demosaicing, or color filter array (CFA) interpolation, estimates missing color channels of raw mosaiced images from a CFA to reproduce full‐color images. It is an essential process for single‐sensor digital cameras with CFAs. In this paper, a new demosaicing method for digital cameras with Bayer‐like W‐RGB CFAs is proposed. To preserve the edge structure when reproducing full‐color images, we propose an edge direction–adaptive method using color difference estimation between different channels, which can be applied to practical digital camera use. To evaluate the performance of the proposed method in terms of CPSNR, FSIM, and S‐CIELAB color distance measures, we perform simulations on sets of mosaiced images captured by an actual prototype digital camera with a Bayer‐like W‐RGB CFA. The simulation results show that the proposed method demosaics better than a conventional one by approximately +22.4% CPSNR, +0.9% FSIM, and +36.7% S‐CIELAB distance. Demosaicing, or color filter array (CFA) interpolation, estimates missing color channels of raw mosaiced images from a CFA to reproduce full-color images. It is an essential process for single-sensor digital cameras with CFAs. In this paper, a new demosaicing method for digital cameras with Bayer-like W-RGB CFAs is proposed. To preserve the edge structure when reproducing full-color images, we propose an edge direction–adaptive method using color difference estimation between different channels, which can be applied to practical digital camera use. To evaluate the performance of the proposed method in terms of CPSNR, FSIM, and S-CIELAB color distance measures, we perform simulations on sets of mosaiced images captured by an actual prototype digital camera with a Bayer-like W-RGB CFA. The simulation results show that the proposed method demosaics better than a conventional one by approximately +22.4% CPSNR, +0.9% FSIM, and +36.7% S-CIELAB distance. KCI Citation Count: 1 |
| Author | Jang, Euee Seon Chong, Jong‐Wha Park, Jongjoo |
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| Cites_doi | 10.1109/TIP.2011.2109730 10.1109/icip.2010.5652731 10.1109/isscc.2008.4523052 10.1117/12.2003320 10.1117/12.702722 10.1109/TIP.2011.2155073 |
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| Notes | Euee Seon Jang Jongjoo Park esjang@hanyang.ac.kr are with the Department of Electronics Engineering, Hanyang University, Seoul, Rep. of Korea. jchong@hanyang.ac.kr is with the Division of Computer Science & Engineering, Hanyang University, Seoul, Rep. of Korea. herojongjoo@gmail.com and Jong‐Wha Chong (corresponding author SK hynix provided the research facilities for this study. This research was supported by the MSIP (Ministry of Science, ICT & Future Planning), Rep. of Korea, under the ITRC (Information Technology Research Center) support program (IITP‐2015‐H8501‐15‐1005) supervised by the IITP (Institute for Information & Communications Technology Promotion). G704-001110.2016.38.1.018 https://etrij.etri.re.kr/etrij/journal/article/article.do?volume=38&issue=1&page=164 |
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| Snippet | Demosaicing, or color filter array (CFA) interpolation, estimates missing color channels of raw mosaiced images from a CFA to reproduce full‐color images. It... Demosaicing, or color filter array (CFA) interpolation, estimates missing color channels of raw mosaiced images from a CFA to reproduce full-color images. It... |
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| SubjectTerms | Bayer‐like White‐RGB color filter array interpolation demosaicing digital camera W‐RGB color filter array 전자/정보통신공학 |
| Title | Demosaicing Method for Digital Cameras with White‐RGB Color Filter Array |
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