Application of High-Dynamic Range Imaging Techniques in Architecture: A Step toward High-Quality Daylit Interiors?

High dynamic range (HDR) imaging techniques are nowadays widely used in building research to capture luminances in the occupant field of view and investigate visual discomfort. This photographic technique also makes it possible to map sky luminances. Such images can be used for illuminating virtual...

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Bibliographic Details
Published in:Journal of imaging Vol. 4; no. 1; p. 19
Main Authors: Cauwerts, Coralie, Piderit, María
Format: Journal Article
Language:English
Published: Basel MDPI AG 01.01.2018
Subjects:
Accuracy
Business metrics
Circadian rhythm
Computer graphics
Computer simulation
daylighting
Design
Dynamic range
Energy
Field of view
high dynamic range imaging techniques
Illuminance
image-based lighting
Imaging techniques
Light
Lighting
Mathematical models
Modelling
Photography
prediction
psychophysics
Quality
Radiance
renderings
Researchers
Simulation
Sky luminance
Software
Virtual reality
Belgium
United States > US
ISSN:2313-433X, 2313-433X
Online Access:Get full text
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Summary:High dynamic range (HDR) imaging techniques are nowadays widely used in building research to capture luminances in the occupant field of view and investigate visual discomfort. This photographic technique also makes it possible to map sky luminances. Such images can be used for illuminating virtual scenes; the technique is called image-based lighting (IBL). This paper presents a work investigating IBL in a lighting quality research context for accelerating the development of appearance-driven performance indicators. Simulations were carried out using Radiance software. The ability of IBL to accurately predict indoor luminances is discussed by comparison with luminances from HDR photographs and luminances predicted by simulation in modeling the sky in several other more traditional ways. The present study confirms previous observations that IBL leads to similar luminance values than far less laborious simulations in which the sky is modeled based on outdoor illuminance measurements. IBL and these last methods minimize differences with HDR photographs in comparison to sky modeling not based on outdoor measurements.
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ISSN:2313-433X
2313-433X
DOI:10.3390/jimaging4010019