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Proceedings Paper

Development of a UV to IR extension to the standard colorimetry, based on a seven band modified DSLR camera to better characterize surfaces, tissues and fabrics
Author(s): Marcello Melis; Alice Babbi; Matteo Miccoli
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Paper Abstract

Starting from the standard colorimetry, as defined by the International Commission on Illumination - CIE, we propose an enhanced approach to add near UV and near IR sides to the usual visible electromagnetic spectrum, extending standard XYZ colorimetric coordinate to 7 values, calculated with a revision of the Color Matching Functions (CMF) that we called Hypercolor Matching Functions (HMF). We used a modified digital reflex camera and a set of optical filters to realize such a system and we measured 7 band based colorimetric distances among several pigments, that, compared to distances calculated in the XYZ space, resulted into a better and more reliable separation among reflectance spectra.

Paper Details

Date Published: 6 June 2011
PDF: 11 pages
Proc. SPIE 8084, O3A: Optics for Arts, Architecture, and Archaeology III, 80840C (6 June 2011); doi: 10.1117/12.889560
Show Author Affiliations
Marcello Melis, Profilocolore Srl (Italy)
Alice Babbi, Univ. degli Studi di Roma Tor Vergata (Italy)
Matteo Miccoli, Univ. degli Studi di Roma La Sapienza (Italy)

Published in SPIE Proceedings Vol. 8084:
O3A: Optics for Arts, Architecture, and Archaeology III
Luca Pezzati; Renzo Salimbeni, Editor(s)

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