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Sensors 2017, 17(6), 1281;

High Dynamic Range Spectral Imaging Pipeline For Multispectral Filter Array Cameras

MIPS Laboratory, Université de Haute Alsace, 68093 Mulhouse, France
The Norwegian Colour and Visual Computing Laboratory, NTNU - Norwegian University of Science and Technology, 2815 Gjøvik, Norway
Le2i Laboratory, FRE CNRS 2005, Université de Bourgogne Franche-Comté, 21000 Dijon, France
Author to whom correspondence should be addressed.
Academic Editors: Nicole Jaffrezic-Renault and Gaelle Lissorgues
Received: 12 April 2017 / Revised: 19 May 2017 / Accepted: 31 May 2017 / Published: 3 June 2017
(This article belongs to the Special Issue State-of-the-Art Sensors Technology in France 2016)
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Spectral filter arrays imaging exhibits a strong similarity with color filter arrays. This permits us to embed this technology in practical vision systems with little adaptation of the existing solutions. In this communication, we define an imaging pipeline that permits high dynamic range (HDR)-spectral imaging, which is extended from color filter arrays. We propose an implementation of this pipeline on a prototype sensor and evaluate the quality of our implementation results on real data with objective metrics and visual examples. We demonstrate that we reduce noise, and, in particular we solve the problem of noise generated by the lack of energy balance. Data are provided to the community in an image database for further research. View Full-Text
Keywords: spectral imaging; spectral filter arrays; high dynamic range; image database spectral imaging; spectral filter arrays; high dynamic range; image database

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Lapray, P.-J.; Thomas, J.-B.; Gouton, P. High Dynamic Range Spectral Imaging Pipeline For Multispectral Filter Array Cameras. Sensors 2017, 17, 1281.

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