Spectral reflectance estimation for electronic endoscope

A method of spectral reflectance estimation for electronic endoscopes is described. A new approach is proposed for the overfitting problem. We use a small training set. Initially, cross-validation is used to select model parameters. Then, for additional validation of the method a color image acquire...

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Bibliographic Details
Published in:Optical review (Tokyo, Japan) Japan), 2014-05, Vol.21 (3), p.313-319
Main Authors: Bochko, Vladimir Alexandrovich, Miyake, Yoichi, Alander, Jarmo Tapani
Format: Article
Language:English
Subjects:
Atomic
Lasers
Microwaves
Molecular
Optical and Plasma Physics
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
Quantum Optics
RF and Optical Engineering
Special Section: The Tenth Japan-Finland Joint Symposium on Optics in Engineering “OIE’13
Utsunomiya
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Summary:A method of spectral reflectance estimation for electronic endoscopes is described. A new approach is proposed for the overfitting problem. We use a small training set. Initially, cross-validation is used to select model parameters. Then, for additional validation of the method a color image acquired under the same illumination as the training data is used. This additional color image gives a clear solution for both the estimation of spectra and the estimation of color reproduced from these spectra. Experiments confirm that the method predicts spectral reflectance and colors well. Accurate reproduction of endoscope images in different viewing conditions and under another light source was implemented using this approach.
ISSN:1340-6000
1349-9432
DOI:10.1007/s10043-014-0047-4