Accurate Measurement of Daylit Interior Scenes Using High Dynamic Range Photography

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dc.contributor.authorJakubiec, J. Alstan
dc.contributor.authorVan Den Wymelenberg, Kevin
dc.contributor.authorInanici, Mehlika
dc.contributor.authorMahic, Alen
dc.date.accessioned2024-07-18T18:50:43Z
dc.date.available2024-07-18T18:50:43Z
dc.date.issued2016
dc.description10 pagesen_US
dc.description.abstractThis paper investigates accuracy in typical High Dynamic Range (HDR) photography techniques used by researchers measuring high resolution luminance information for visual comfort studies in daylit spaces. Vignetting effects of circular fisheye lenses are investigated for reproducibility between different lenses of the same model and sharing between researchers. The selection of aperture size is related to vignetting intensity, dynamic range and potential for lens flare. Lighting variability during capture processes is also tracked, and it is recommended to measure vertical illuminance in order to validate the stability of a scene. Finally, luminous overflow—a concept where a HDR photograph cannot measure the true luminous environment—is introduced. Its effect on the glare metrics UGR and DGP is investigated by using neutral density (ND) filters to increase the dynamic range of photographs under direct sunlight. It is recommended to use ND filters in scenes with vertical illuminances greater than 5 000 lx or with direct vision of the sun.en_US
dc.formatArticle
dc.identifier.citationJakubiec, J., Van Den Wymelenberg, K., Inanici, M., & Mahic, A. (2016). Accurate Measurement of Daylit Interior Scenes Using High Dynamic Range Photography. Presented at the CIE Lighting Quality and Energy Efficiency Conference, Melbourne.en_US
dc.identifier.urihttps://hdl.handle.net/1794/29664
dc.language.isoen_USen_US
dc.publisherInstitute for Health in the Built Environment, University of Oregonen_US
dc.rightsCreative Commons BY-NC-ND 4.0-USen_US
dc.subjectlighting measurementsen_US
dc.subjecthigh dynamic range photographyen_US
dc.subjectluminanceen_US
dc.titleAccurate Measurement of Daylit Interior Scenes Using High Dynamic Range Photographyen_US
dc.typeArticleen_US

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