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Illuminance-proxy high dynamic range imaging: a simple method to measure surface reflectance

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conference contribution
posted on 11.01.2016, 11:47 by John Mardaljevic, Eleonora Brembilla, Nafsika Drosou
A technique to measure arbitrarily complex patterns of diffuse surface reflectance under real-world illumination conditions is presented. The technique is founded on high dynamic range (HDR) imaging whereby the luminance values in an HDR image are used to derive average and/or per-pixel values of surface reflectance. Two variants of the method are described and the results from both are compared with analytical solutions. Whilst the technique has general application for the measurement of reflectance, the authors make the case that there is a pressing need to survey occupied building spaces since the notional/typical reflectance values commonly employed in simulation for compliance testing may be quite different from those found in real buildings.

History

School

  • Architecture, Building and Civil Engineering

Published in

CIE 28th Session, Manchester, UK

Citation

MARDALJEVIC, J., BREMBILLA, E. and DROSOU, N., 2015. Illuminance-proxy high dynamic range imaging: a simple method to measure surface reflectance. Presented at: The 28th Session of the International Commission on Illumination (CIE 2015), 28th June-4th July 2015, Manchester.

Publisher

© Commission Internationale de l'Eclairage

Version

AM (Accepted Manuscript)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2015

Notes

This is a conference paper.

Language

en

Location

Manchester

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