Publication:
Evaluation of two procedures for selecting the CIE standard sky type using high dynamic range images

Date

2019

Director

Publisher

International Solar Energy Society
Acceso abierto / Sarbide irekia
Contribución a congreso / Biltzarrerako ekarpena
Versión publicada / Argitaratu den bertsioa

Project identifier

AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/ENE2017-86974-R/ES/recolecta

Abstract

The characterization of sky conditions according to the CIE Standard General Sky classification requires knowledge of diffuse luminance angular distribution in the sky vault. This variable is usually measured by sky scanners. However, commercial sky scanners have different drawbacks related to their resolution and measurement time. An alternative to these devices is the use of sky images captured with a digital camera equipped with a fisheye lens. The range of luminances that may occur in the sky makes it necessary to use high dynamic range (HDR) images obtained by the fusion of a series of low dynamic range (LDR) images. Two procedures for the characterization of sky conditions according to the CIE standard using HDR images have been applied and evaluated.

Description

Incluye póster

Keywords

CIE standard skies, Sky imager, HDR imaging

Department

Ingeniería / Ingeniaritza / Ciencias / Zientziak

Faculty/School

Degree

Doctorate program

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