Description and solution of an unreported intrinsic bias in photon mapping density estimation with constant kernel

This paper presents an analysis of the irradiance estimator often used in photon mapping algorithms and concludes that the classical approach with a constant kernel overestimates the correct value. We propose a new estimator that solves this problem and provide both theoretical and empirical studies...

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Detalles Bibliográficos
Autores: García Hernandez, Rubén Jesús, Ureña, Carlos, Sbert, Mateu
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2012
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:10256/11675
Acceso en línea:http://hdl.handle.net/10256/11675
Access Level:acceso embargado
Palabra clave:Kernel, Funcions de
Kernel functions
Infografia
Computer graphics
Funcional de densitat, Teoria del
Density functionals
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spelling Description and solution of an unreported intrinsic bias in photon mapping density estimation with constant kernelGarcía Hernandez, Rubén JesúsUreña, CarlosSbert, MateuKernel, Funcions deKernel functionsInfografiaComputer graphicsFuncional de densitat, Teoria delDensity functionalsThis paper presents an analysis of the irradiance estimator often used in photon mapping algorithms and concludes that the classical approach with a constant kernel overestimates the correct value. We propose a new estimator that solves this problem and provide both theoretical and empirical studies to verify itThis work has been supported by the research projects coded TIN2007-68066-C04-01 and TIN2010-21089-C03-01 (Spanish Commission for Science and Technology), by grants VALTEC09-2-0118 and 2009SGR643 (Catalan Government) and by FEDER funding from the European UnionWileyMinisterio de Ciencia e Innovación (Espanya)Ministerio de Educación y Ciencia (Espanya)Generalitat de Catalunya. Agència de Gestió d'Ajuts Universitaris i de Recercainfoinfo2012info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10256/11675http://hdl.handle.net/10256/11675© Computer Graphics Forum, 2012, vol. 31, núm., p. 33-41Articles publicats (D-IMA)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)Inglésinfo:eu-repo/semantics/altIdentifier/doi/10.1111/j.1467-8659.2011.02081.xinfo:eu-repo/semantics/altIdentifier/issn/0167-7055info:eu-repo/semantics/altIdentifier/eissn/1467-8659info:eu-repo/grantAgreement/MICINN//TIN2010-21089-C03-01info:eu-repo/grantAgreement/MEC//TIN2007-68066-C04-01AGAUR/2009-2014/2009 SGR-643Tots els drets reservatsinfo:eu-repo/semantics/embargoedAccessoai:recercat.cat:10256/116752026-05-29T05:05:01Z
dc.title.none.fl_str_mv Description and solution of an unreported intrinsic bias in photon mapping density estimation with constant kernel
title Description and solution of an unreported intrinsic bias in photon mapping density estimation with constant kernel
spellingShingle Description and solution of an unreported intrinsic bias in photon mapping density estimation with constant kernel
García Hernandez, Rubén Jesús
Kernel, Funcions de
Kernel functions
Infografia
Computer graphics
Funcional de densitat, Teoria del
Density functionals
title_short Description and solution of an unreported intrinsic bias in photon mapping density estimation with constant kernel
title_full Description and solution of an unreported intrinsic bias in photon mapping density estimation with constant kernel
title_fullStr Description and solution of an unreported intrinsic bias in photon mapping density estimation with constant kernel
title_full_unstemmed Description and solution of an unreported intrinsic bias in photon mapping density estimation with constant kernel
title_sort Description and solution of an unreported intrinsic bias in photon mapping density estimation with constant kernel
dc.creator.none.fl_str_mv García Hernandez, Rubén Jesús
Ureña, Carlos
Sbert, Mateu
author García Hernandez, Rubén Jesús
author_facet García Hernandez, Rubén Jesús
Ureña, Carlos
Sbert, Mateu
author_role author
author2 Ureña, Carlos
Sbert, Mateu
author2_role author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia e Innovación (Espanya)
Ministerio de Educación y Ciencia (Espanya)
Generalitat de Catalunya. Agència de Gestió d'Ajuts Universitaris i de Recerca
dc.subject.none.fl_str_mv Kernel, Funcions de
Kernel functions
Infografia
Computer graphics
Funcional de densitat, Teoria del
Density functionals
topic Kernel, Funcions de
Kernel functions
Infografia
Computer graphics
Funcional de densitat, Teoria del
Density functionals
description This paper presents an analysis of the irradiance estimator often used in photon mapping algorithms and concludes that the classical approach with a constant kernel overestimates the correct value. We propose a new estimator that solves this problem and provide both theoretical and empirical studies to verify it
publishDate 2012
dc.date.none.fl_str_mv 2012
info
info
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10256/11675
http://hdl.handle.net/10256/11675
url http://hdl.handle.net/10256/11675
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1467-8659.2011.02081.x
info:eu-repo/semantics/altIdentifier/issn/0167-7055
info:eu-repo/semantics/altIdentifier/eissn/1467-8659
info:eu-repo/grantAgreement/MICINN//TIN2010-21089-C03-01
info:eu-repo/grantAgreement/MEC//TIN2007-68066-C04-01
AGAUR/2009-2014/2009 SGR-643
dc.rights.none.fl_str_mv Tots els drets reservats
info:eu-repo/semantics/embargoedAccess
rights_invalid_str_mv Tots els drets reservats
eu_rights_str_mv embargoedAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Wiley
publisher.none.fl_str_mv Wiley
dc.source.none.fl_str_mv © Computer Graphics Forum, 2012, vol. 31, núm., p. 33-41
Articles publicats (D-IMA)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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