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Volume: 2 | Article ID: art00051
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Algorithms for spectral color stimulus reconstruction with a seven-channel multispectral camera
  DOI :  10.2352/CGIV.2004.2.1.art00051  Published OnlineJanuary 2004
Abstract

A mobile seven-channel multispectral camera with optical bandpass filters has been realized. The filters are arranged in a filter wheel rotating between lens and greyscale sensor (CCD). The time required for a complete multispectral exposure was brought down to less than one second. The main part of this paper deals with the algorithms applied to reconstruct spectral color stimuli information from the seven sampling values of the camera. Different methods have been simulated and tested. Results are presented. As the camera is handy enough to offer mobile applications, the illuminant problem for the use under varying light conditions has been studied. Finally, a solution for geometric inter-channel distortions due to glass filters within the optical path inside the camera is pointed out.

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Stephan Helling, Enrico Seidel, Wolfram Biehlig, "Algorithms for spectral color stimulus reconstruction with a seven-channel multispectral camerain Proc. IS&T CGIV 2004 Second European Conf. on Colour in Graphics, Imaging, and Vision,  2004,  pp 254 - 258,  https://doi.org/10.2352/CGIV.2004.2.1.art00051

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Copyright © Society for Imaging Science and Technology 2004
72010351
Conference on Colour in Graphics, Imaging, and Vision
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