Efficient inverse lighting: A statistical approach
dc.contributor.author
dc.date.accessioned
2016-01-28T11:19:09Z
dc.date.available
2016-01-28T11:19:09Z
dc.date.issued
2014
dc.identifier.issn
0926-5805
dc.identifier.uri
dc.description.abstract
Given a scene to illuminate satisfying a specific set of lighting intentions, the inverse lighting techniques allow us to obtain the unknown light source parameters, such as light position or flux emission. This paper introduces a new inverse lighting approach that uses the radiosity mean and variance to define lighting intentions of a scene. It is shown that these statistical parameters can be obtained without the previous calculation of the radiosity of the scene. Avoiding the explicit computation of the illumination of the scene results in a drastic reduction of the time required for the inverse process. This approach also provides a methodology that transforms a current set of lighting intentions into a single lighting intention with statistical parameters. The tests show that the processing time for solving the inverse problem can be reduced to a few seconds in most cases, improving previous work
dc.description.sponsorship
This work was partially funded by the TIN2010-20590-C02-02 project from Ministerio de Ciencia e Innovacion, Spain, by program 720 from Universidad de la Republica, Uruguay, and by Programa de Desarrollo de las Ciencias Basicas, Uruguay
dc.format.mimetype
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
dc.relation
info:eu-repo/grantAgreement/MICINN//TIN2010-20590-C02-02/ES/AVANCES EN REALIDAD VIRTUAL PARA APLICACIONES PUNTERAS-UDG/
dc.relation.isformatof
Reproducció digital del document publicat a: http://dx.doi.org/10.1016/j.autcon.2013.09.004
dc.relation.ispartof
© Automation in Construction, 2014, vol. 37, p. 48-57
dc.relation.ispartofseries
Articles publicats (D-IMA)
dc.rights
Tots els drets reservats
dc.title
Efficient inverse lighting: A statistical approach
dc.type
info:eu-repo/semantics/article
dc.rights.accessRights
info:eu-repo/semantics/embargoedAccess
dc.embargo.terms
Cap
dc.date.embargoEndDate
info:eu-repo/date/embargoEnd/2026-01-01
dc.type.version
info:eu-repo/semantics/publishedVersion
dc.identifier.doi
dc.identifier.idgrec
020774
dc.contributor.funder
dc.relation.ProjectAcronym