Linearisation of RGB camera responses for quantitative image analysis of visible and UV photography: a comparison of two techniques.

Linear camera responses are required for recovering the total amount of incident irradiance, quantitative image analysis, spectral reconstruction from camera responses and characterisation of spectral sensitivity curves. Two commercially-available digital cameras equipped with Bayer filter arrays an...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Jair E Garcia, Adrian G Dyer, Andrew D Greentree, Gale Spring, Philip A Wilksch
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/a77f8a0c62c84066ab14507cf1be7c95
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:a77f8a0c62c84066ab14507cf1be7c95
record_format	dspace
spelling	oai:doaj.org-article:a77f8a0c62c84066ab14507cf1be7c952021-11-18T08:45:55ZLinearisation of RGB camera responses for quantitative image analysis of visible and UV photography: a comparison of two techniques.1932-620310.1371/journal.pone.0079534https://doaj.org/article/a77f8a0c62c84066ab14507cf1be7c952013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24260244/?tool=EBIhttps://doaj.org/toc/1932-6203Linear camera responses are required for recovering the total amount of incident irradiance, quantitative image analysis, spectral reconstruction from camera responses and characterisation of spectral sensitivity curves. Two commercially-available digital cameras equipped with Bayer filter arrays and sensitive to visible and near-UV radiation were characterised using biexponential and Bézier curves. Both methods successfully fitted the entire characteristic curve of the tested devices, allowing for an accurate recovery of linear camera responses, particularly those corresponding to the middle of the exposure range. Nevertheless the two methods differ in the nature of the required input parameters and the uncertainty associated with the recovered linear camera responses obtained at the extreme ends of the exposure range. Here we demonstrate the use of both methods for retrieving information about scene irradiance, describing and quantifying the uncertainty involved in the estimation of linear camera responses.Jair E GarciaAdrian G DyerAndrew D GreentreeGale SpringPhilip A WilkschPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 11, p e79534 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jair E Garcia Adrian G Dyer Andrew D Greentree Gale Spring Philip A Wilksch Linearisation of RGB camera responses for quantitative image analysis of visible and UV photography: a comparison of two techniques.
description	Linear camera responses are required for recovering the total amount of incident irradiance, quantitative image analysis, spectral reconstruction from camera responses and characterisation of spectral sensitivity curves. Two commercially-available digital cameras equipped with Bayer filter arrays and sensitive to visible and near-UV radiation were characterised using biexponential and Bézier curves. Both methods successfully fitted the entire characteristic curve of the tested devices, allowing for an accurate recovery of linear camera responses, particularly those corresponding to the middle of the exposure range. Nevertheless the two methods differ in the nature of the required input parameters and the uncertainty associated with the recovered linear camera responses obtained at the extreme ends of the exposure range. Here we demonstrate the use of both methods for retrieving information about scene irradiance, describing and quantifying the uncertainty involved in the estimation of linear camera responses.
format	article
author	Jair E Garcia Adrian G Dyer Andrew D Greentree Gale Spring Philip A Wilksch
author_facet	Jair E Garcia Adrian G Dyer Andrew D Greentree Gale Spring Philip A Wilksch
author_sort	Jair E Garcia
title	Linearisation of RGB camera responses for quantitative image analysis of visible and UV photography: a comparison of two techniques.
title_short	Linearisation of RGB camera responses for quantitative image analysis of visible and UV photography: a comparison of two techniques.
title_full	Linearisation of RGB camera responses for quantitative image analysis of visible and UV photography: a comparison of two techniques.
title_fullStr	Linearisation of RGB camera responses for quantitative image analysis of visible and UV photography: a comparison of two techniques.
title_full_unstemmed	Linearisation of RGB camera responses for quantitative image analysis of visible and UV photography: a comparison of two techniques.
title_sort	linearisation of rgb camera responses for quantitative image analysis of visible and uv photography: a comparison of two techniques.
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/a77f8a0c62c84066ab14507cf1be7c95
work_keys_str_mv	AT jairegarcia linearisationofrgbcameraresponsesforquantitativeimageanalysisofvisibleanduvphotographyacomparisonoftwotechniques AT adriangdyer linearisationofrgbcameraresponsesforquantitativeimageanalysisofvisibleanduvphotographyacomparisonoftwotechniques AT andrewdgreentree linearisationofrgbcameraresponsesforquantitativeimageanalysisofvisibleanduvphotographyacomparisonoftwotechniques AT galespring linearisationofrgbcameraresponsesforquantitativeimageanalysisofvisibleanduvphotographyacomparisonoftwotechniques AT philipawilksch linearisationofrgbcameraresponsesforquantitativeimageanalysisofvisibleanduvphotographyacomparisonoftwotechniques
_version_	1718421340712599552

Linearisation of RGB camera responses for quantitative image analysis of visible and UV photography: a comparison of two techniques.

Ejemplares similares