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Volume: 5 | Article ID: art00085
Spectral Variability of Light-Emitting Diodes with Angle
  DOI :  10.2352/CGIV.2010.5.1.art00085  Published OnlineJanuary 2010

Multispectral systems allow the spectral characterization of the scene through several acquisition channels with different spectral features. The spectral sampling can be done by using transmittance filters and a white light source or illuminating the scene using light sources with different spectral emission characteristics. Light-emitting diodes based light sources have started to be used in multispectral systems, mainly to develop low-cost devices for the industry. In this study we analyze the spectral power distribution and color variability of white and single color light-emitting diodes relative to the viewing angle, and highlight some aspects that must be taken into account if these light sources want to be used in a multispectral system.

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Óscar Martínez, Meritxell Vilaseca, Carles Pizarro, Èdgar Ferrer, Montserrat Arjona, Jaume Pujol, "Spectral Variability of Light-Emitting Diodes with Anglein Proc. IS&T CGIV 2010/MCS'10 5th European Conf. on Colour in Graphics, Imaging, and Vision 12th Int'l Symp. on Multispectral Colour Science,  2010,  pp 547 - 553,

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