{ "dc.contributor.author": "García Hernandez, Rubén Jesús" , "dc.contributor.author": "Ureña, Carlos" , "dc.contributor.author": "Sbert, Mateu" , "dc.date.accessioned": "2015-12-09T08:29:44Z" , "dc.date.available": "2015-12-09T08:29:44Z" , "dc.date.issued": "2012" , "dc.identifier.issn": "0167-7055 (versió paper)" , "dc.identifier.issn": "1467-8659 (versió electrònica)" , "dc.identifier.uri": "http://hdl.handle.net/10256/11675" , "dc.description.abstract": "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" , "dc.description.sponsorship": "This 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 Union" , "dc.format.mimetype": "application/pdf" , "dc.language.iso": "eng" , "dc.publisher": "Wiley" , "dc.relation": "MICINN/PN 2011-2013/TIN2010-21089-C03-01" , "dc.relation": "MEC/PN 2007-2010/TIN2007-68066-C04-01" , "dc.relation": "AGAUR/2009-2014/2009 SGR-643" , "dc.relation": "CIDEM/2009-2012/VALTEC09-2-0118" , "dc.relation.isformatof": "Reproducció digital del document publicat a: http://dx.doi.org/10.1111/j.1467-8659.2011.02081.x" , "dc.relation.ispartof": "© Computer Graphics Forum, 2012, vol. 31, núm., p. 33-41" , "dc.relation.ispartofseries": "Articles publicats (D-IMA)" , "dc.rights": "Tots els drets reservats" , "dc.subject": "Kernel, Funcions de" , "dc.subject": "Kernel functions" , "dc.subject": "Infografia" , "dc.subject": "Computer graphics" , "dc.subject": "Funcional de densitat, Teoria del" , "dc.subject": "Density functionals" , "dc.title": "Description and solution of an unreported intrinsic bias in photon mapping density estimation with constant kernel" , "dc.type": "info:eu-repo/semantics/article" , "dc.rights.accessRights": "info:eu-repo/semantics/embargoedAccess" , "dc.embargo.terms": "Cap" , "dc.type.version": "info:eu-repo/semantics/publishedVersion" , "dc.identifier.doi": "http://dx.doi.org/10.1111/j.1467-8659.2011.02081.x" , "dc.identifier.idgrec": "016208" , "dc.contributor.funder": "Ministerio de Ciencia e Innovación (Espanya)" , "dc.contributor.funder": "Ministerio de Educación y Ciencia (Espanya)" , "dc.contributor.funder": "Generalitat de Catalunya. Agència de Gestió d'Ajuts Universitaris i de Recerca" , "dc.contributor.funder": "Centre d'Innovació i Desenvolupament Empresarial (Catalunya)" }