Whole-Sky Luminance Maps from Calibrated Digital Photography

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Title: Whole-Sky Luminance Maps from Calibrated Digital Photography
Authors: Kenny, Paul
Olley, John A.
Lewis, J. Owen
Permanent link: http://hdl.handle.net/10197/3962
Date: 2006
Abstract: Sky luminance is an essential component in assessing the appearance and performance of internal spaces which are highly sensitive to the often dynamic luminance of the visible sector of the sky. Therefore, whole sky luminance distributions representative of real-sky sectoral dynamics over short time intervals are required. A modified scientific-grade digital camera was used to measure whole-sky luminance distributions of various sky conditions. Results showed acceptable correlation between the measured and calculated results for overcast and clear skies demonstrating the viability of using hemispherical digital photography for mapping whole-sky luminance distributions. However, intermediate skies showed distinct sectoral variations and dynamics supporting the argument for more accurate and respresentative luminance distribution data.
Funding Details: Not applicable
Type of material: Conference Publication
Publisher: International Solar Energy Society
Copyright (published version): 2006 the Authors
Keywords: Sky;Fisheye;Photography;Luminance distribution;Digital photometry;Daylight design
Subject LCSH: Sky--Maps
Luminescence
Photometry
Light in architecture
Language: en
Status of Item: Peer reviewed
Is part of: Proceedings of the EuroSun 2006 Conference (CD)
Conference Details: Eurosun 2006, 27-30 June, Glasgow, Scotland
Appears in Collections:Architecture, Planning and Environmental Policy Research Collection

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