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2005 SOLAR WORLD CONGRESS, 2005, Orlando, Flórida. Anais... 2005. 6 p.
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Número de Trabalhos: 1 (Nenhum com arquivo PDF disponível)
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Dados do autor na base InfoHab:
Número de Trabalhos: 2 (Nenhum com arquivo PDF disponível)
Citações: Nenhuma citação encontrada
Índice h: Indice h não calculado  
Co-autores: Nenhum co-autor encontrado

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Abstract

This paper presents the findings of a study that evaluates a procedure that uses available computer tools to assess the luminance distribution of spaces using High Dynamic Range (HDR) photography. We tested available software packages to create a series of HDR images with different exposure (f-stops), resolution, digital cameras, wide-angle lenses, luminance ratios, lighting levels, and type of lighting systems (daylighting and electric lighting) that were used for comparison. The HDR images were then imported into the RADIANCE lighting simulation program, to be converted into the human visual sensitivity, false color and iso-contour images, where a more comprehensive set of luminance distribution can be displayed. The results of the evaluation indicated that the measured luminance distribution generated with Photosphere and the RADIANCE lighting software were similar to the spot luminance measurements taken in an existing space with a Minolta LS-100 Luminance meter. The differences between the measured luminance values and the generated ones with HDR photography and the RADIANCE program varied between -0.7 to 3.5% of the average luminance measurement, which makes it an ideal procedure to use for the evaluation of the lighting quality of indoor and outdoor spaces.
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