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

Marcello Melis; Alice Babbi; Matteo Miccoli

doi:10.1117/12.889560

6 June 2011 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

Marcello Melis, Alice Babbi, Matteo Miccoli

Author Affiliations +

Proceedings Volume 8084, O3A: Optics for Arts, Architecture, and Archaeology III; 80840C (2011) https://doi.org/10.1117/12.889560
Event: SPIE Optical Metrology, 2011, Munich, Germany

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.

Citation Download Citation

Marcello Melis, Alice Babbi, and Matteo Miccoli "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", Proc. SPIE 8084, O3A: Optics for Arts, Architecture, and Archaeology III, 80840C (6 June 2011); https://doi.org/10.1117/12.889560

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