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Reference TypeConference Proceedings
Repositorysid.inpe.br/sibgrapi@80/2007/09.04.19.28
Metadatasid.inpe.br/sibgrapi@80/2007/09.04.19.28.21
Sitesibgrapi.sid.inpe.br
Citation KeyRibeiroMaxBenOliFar:2007:MeEfRa
Author1 Ribeiro, Saulo
2 Maximo, André
3 Bentes, Cristiana
4 Oliveira, Antônio
5 Farias, Ricardo
Affiliation1 COPPE - Systems Engineering Program, Federal University of Rio de Janeiro - Brazil
2 COPPE - Systems Engineering Program, Federal University of Rio de Janeiro - Brazil
3 Department of Systems Engineering, State University of Rio de Janeiro - Brazil
4 COPPE - Systems Engineering Program, Federal University of Rio de Janeiro - Brazil
5 COPPE - Systems Engineering Program, Federal University of Rio de Janeiro - Brazil
TitleMemory-Aware and Efficient Ray-Casting Algorithm
Conference NameBrazilian Symposium on Computer Graphics and Image Processing, 20 (SIBGRAPI)
Year2007
EditorFalcão, Alexandre Xavier
Lopes, Hélio Côrtes Vieira
Book TitleProceedings
DateOct. 7-10, 2007
Publisher CityLos Alamitos
PublisherIEEE Computer Society
Conference LocationBelo Horizonte
KeywordsScientific Visualization, Large Data Sets, Volumetric Rendering, Ray-Casting.
AbstractRay-casting implementations require that the connectivity between the cells of the dataset to be explicitly computed and kept in memory. This constitutes a huge obstacle for obtaining real-time rendering for very large models. In this paper, we address this problem by introducing a new implementation of the ray-casting algorithm for irregular datasets. Our implementation optimizes the memory usage of past implementations by exploring ray coherence. The idea is to keep in main memory the information of the faces traversed by the ray cast through every pixel under the projection of a visible face. Our results show that exploring pixel coherence reduces considerably the memory usage, while keeping the performance of our algorithm competitive with the fastest previous ones.
Languageen
Tertiary TypeFull Paper
FormatPrinted, On-line.
Size232 KiB
Number of Files1
Target Fileribeiro_visiblefaces.pdf
Last Update2007:09.04.19.28.20 sid.inpe.br/banon/2001/03.30.15.38 administrator
Metadata Last Update2020:02.19.03.06.19 sid.inpe.br/banon/2001/03.30.15.38 administrator {D 2007}
Document Stagecompleted
Is the master or a copy?is the master
Mirrordpi.inpe.br/banon-pc2@80/2006/08.30.19.27
User Groupsaullo@gmail.com administrator
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Content TypeExternal Contribution
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History2008-07-17 14:09:44 :: saullo@gmail.com -> administrator ::
2009-08-13 20:38:33 :: administrator -> banon ::
2010-08-28 20:02:30 :: banon -> administrator ::
2020-02-19 03:06:19 :: administrator -> :: 2007
Empty Fieldsaccessionnumber archivingpolicy archivist area callnumber copyholder copyright creatorhistory descriptionlevel dissemination documentstage doi e-mailaddress edition electronicmailaddress group holdercode isbn issn label lineage mark nextedition nexthigherunit notes numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project readergroup readpermission resumeid rightsholder secondarydate secondarykey secondarymark secondarytype serieseditor session shorttitle sponsor subject tertiarymark type url versiontype volume
Access Date2020, Nov. 25

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