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dc.contributor.authorVázquez Alcocer, Pere Pau
dc.contributor.authorSbert Cassasayas, Mateu
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Llenguatges i Sistemes Informàtics
dc.identifier.citationVázquez, P.; Sbert, M. Bandwidth reduction techniques for remote navigation systems. A: International Conference on Computational Science. "2th International Conference on Computational Science". Amsterdam: 2002, p. 249-257.
dc.description.abstractIn this paper we explore a set of techniques to reduce the bandwidth in remote navigation systems. These systems, such as exploration of virtual 3D worlds or remote surgery, usually require higher bandwidth than the common Internet connection available at home. Our system consists in a client PC equipped with a graphics card, and a remote high-end server, which hosts the remote environment and serves information for several clients. Each time the client needs a frame, the new image is predicted by both the client and the server and the difference with the exact one is sent to the client. To reduce bandwidth we improve the prediction method by exploiting spatial coherence and wiping out correct pixels from the difference image. This way we achieve up to 9:1 reduction ratios without loss of quality. These methods can be applied to head-mounted displays or any remote navigation software.
dc.format.extent9 p.
dc.subjectÀrees temàtiques de la UPC::Informàtica::Infografia
dc.subject.lcshClient/server computing
dc.subject.otherClient-server systems
dc.subject.otherRendering (Computer graphics)
dc.subject.otherVirtual reality
dc.titleBandwidth reduction techniques for remote navigation systems
dc.typeConference report
dc.subject.lemacArquitectura client-servidor (Informàtica)
dc.subject.lemacRealitat virtual
dc.contributor.groupUniversitat Politècnica de Catalunya. MOVING - Grup de Recerca en Modelatge, Interacció i Visualització en Realitat Virtual
dc.rights.accessRestricted access - publisher's policy
dc.description.versionPostprint (published version)
upcommons.citation.authorVázquez, P.; Sbert, M.
upcommons.citation.contributorInternational Conference on Computational Science
upcommons.citation.publicationName2th International Conference on Computational Science

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