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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editor: Gregory W. Faris
  • Vol. 4, Iss. 6 — May. 26, 2009

Piecewise Wiener estimation for reconstruction of spectral reflectance image by multipoint spectral measurements

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


Applied Optics, Vol. 48, Issue 11, pp. 2188-2202 (2009)
http://dx.doi.org/10.1364/AO.48.002188


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Abstract

This study proposes a piecewise Wiener estimation method to reconstruct a spectral reflectance image from a three-band image by multipoint spectral information collected simultaneously with image acquisition. A three-band image is divided into several blocks and the spectral estimation is carried out using the Wiener estimation matrix assigned to each block. Each Wiener estimation matrix is constructed on the basis of spectral measurement data. The experimental results show that the proposed method reduces the average estimation error monotonically as the number of spectral measurements increases. In addition, the computational time of the piecewise Wiener estimation costs only severalfold of the computational time of the conventional single-matrix method.

© 2009 Optical Society of America

OCIS Codes
(100.2000) Image processing : Digital image processing
(100.3010) Image processing : Image reconstruction techniques
(330.1690) Vision, color, and visual optics : Color
(110.4234) Imaging systems : Multispectral and hyperspectral imaging

ToC Category:
Image Processing

History
Original Manuscript: July 14, 2008
Revised Manuscript: January 8, 2009
Manuscript Accepted: January 14, 2009
Published: April 8, 2009

Virtual Issues
Vol. 4, Iss. 6 Virtual Journal for Biomedical Optics

Citation
Yuri Murakami, Masahiro Yamaguchi, and Nagaaki Ohyama, "Piecewise Wiener estimation for reconstruction of spectral reflectance image by multipoint spectral measurements," Appl. Opt. 48, 2188-2202 (2009)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ao-48-11-2188


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