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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics


  • Editor: Gregory W. Faris
  • Vol. 3, Iss. 4 — Apr. 23, 2008

Color reproduction from low-SNR multispectral images using spatio-spectral Wiener estimation

Yuri Murakami, Ken Fukura, Masahiro Yamaguchi, and Nagaaki Ohyama  »View Author Affiliations

Optics Express, Vol. 16, Issue 6, pp. 4106-4120 (2008)

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It is possible to capture images with high-fidelity color by using a spectrum-based color image reproduction method that estimates the spectral information of objects from a multispectral image along with information from illumination. When multispectral images do not have a sufficient signal-to-noise ratio (SNR), the accuracy of the spectral and color estimation will be reduced. To improve color estimation accuracy, this paper proposes a spatio-spectral Wiener estimation, which uses spatial correlation as well as spectral correlation. In order to show the effectiveness of the proposed method, computer simulations and an experiment are carried out using a six-channel video camera. As a result, it is assured that the proposed method improves color estimation accuracy and suppresses color noise.

© 2008 Optical Society of America

OCIS Codes
(100.2000) Image processing : Digital image processing
(100.3020) Image processing : Image reconstruction-restoration
(330.1690) Vision, color, and visual optics : Color
(110.4234) Imaging systems : Multispectral and hyperspectral imaging
(110.3010) Imaging systems : Image reconstruction techniques

ToC Category:
Image Processing

Original Manuscript: October 31, 2007
Revised Manuscript: January 15, 2008
Manuscript Accepted: January 17, 2008
Published: March 12, 2008

Virtual Issues
Vol. 3, Iss. 4 Virtual Journal for Biomedical Optics

Yuri Murakami, Ken Fukura, Masahiro Yamaguchi, and Nagaaki Ohyama, "Color reproduction from low-SNR multispectral images using spatio-spectral Wiener estimation," Opt. Express 16, 4106-4120 (2008)

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