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dc.contributor.convenorMagdy Bayoumi
dc.contributor.authorZhang, Xiaozheng
dc.contributor.authorGao, Yongsheng
dc.contributor.editorLina Karam, Thrasos Pappas
dc.date.accessioned2017-05-03T14:34:30Z
dc.date.available2017-05-03T14:34:30Z
dc.date.issued2009
dc.date.modified2010-06-03T09:25:33Z
dc.identifier.isbn978-1-4244-5653-6
dc.identifier.issn1522-4880
dc.identifier.refurihttp://www.icip2009.org/
dc.identifier.doi10.1109/ICIP.2009.5413812
dc.identifier.urihttp://hdl.handle.net/10072/30001
dc.description.abstractAmbient reflection is widely present in many applications of computer graphics and image processing, which is traditionally modelled as a constant free from environmental factors. This paper reconsiders ambient reflection modelling of Lambertian and Phong surfaces and calculates it as reflection integrations of infinitesimal incident beams from the environment. It reveals that ambient reflection exists in variable forms for Lambertian surfaces of non-convex objects and Phong surfaces of all objects. For convex objects with Lambertian surfaces, ambient reflectance coefficient is actually the diffuse reflectance coefficient. Generalised ambient reflection models are proposed to calculate ambient reflection using the same reflection model as used in calculation of other reflections. Based on this analysis, new ambient reflection formulations of Lambertian and Phong surfaces are derived to enable efficient computations in computer graphics and image processing.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.format.extent292851 bytes
dc.format.mimetypeapplication/pdf
dc.languageEnglish
dc.language.isoeng
dc.publisherIEEE
dc.publisher.placeLos Alamitos, CA
dc.relation.ispartofstudentpublicationN
dc.relation.ispartofconferencename16th IEEE International Conference on Image Processing
dc.relation.ispartofconferencetitle2009 16TH IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, VOLS 1-6
dc.relation.ispartofdatefrom2009-11-07
dc.relation.ispartofdateto2009-11-10
dc.relation.ispartoflocationCairo, EGYPT
dc.relation.ispartofpagefrom3993
dc.relation.ispartofpagefrom4 pages
dc.relation.ispartofpageto3996
dc.relation.ispartofpageto4 pages
dc.rights.retentionY
dc.subject.fieldofresearchComputer graphics
dc.subject.fieldofresearchComputer vision
dc.subject.fieldofresearchImage processing
dc.subject.fieldofresearchcode460702
dc.subject.fieldofresearchcode460304
dc.subject.fieldofresearchcode460306
dc.titleGeneralised Ambient Reflection Models for Lambertian and Phong Surfaces
dc.typeConference output
dc.type.descriptionE1 - Conferences
dc.type.codeE - Conference Publications
gro.facultyGriffith Sciences, Griffith School of Engineering
gro.rights.copyright© 2009 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
gro.date.issued2009
gro.hasfulltextFull Text
gro.griffith.authorGao, Yongsheng


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    Contains papers delivered by Griffith authors at national and international conferences.

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