Compression-domain Seamless Multiresolution Visualization of Gigantic Meshes on Mobile Devices

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dc.contributor.authorBalsa Rodriguez, Marcos
dc.contributor.authorGobbetti, Enrico
dc.contributor.authorMarton, Fabio
dc.contributor.authorTinti, Alex
dc.date.accessioned2014-05-15T10:36:43Z
dc.date.available2014-05-15T10:36:43Z
dc.date.issued2013-06
dc.description.abstractWe present a software architecture for distributing and rendering gigantic 3D triangle meshes on common handheld devices. Our approach copes with strong bandwidth and hardware capabilities limitations in terms with a compression-domain adaptive multiresolution rendering approach. The method uses a regular conformal hierarchy of tetrahedra to spatially partition the input 3D model and to arrange mesh fragments at different resolution. We create compact GPU-friendly representations of these fragments by constructing cache-coherent strips that index locally quantized vertex data, exploiting the bounding tetrahedron for creating local barycentic parametrization of the geometry. For the first time, this approach supports local quantization in a fully adaptive seamless 3D mesh structure. For web distribution, further compression is obtained by exploiting local data coherence for entropy coding. At run-time, mobile viewer applications adaptively refine a local multiresolution model maintained in a GPU by asynchronously loading from a web server the required fragments. CPU and GPU cooperate for decompression, and a shaded rendering of colored meshes is performed at interactive speed directly from an intermediate compact representation using only 8bytes/vertex, therefore coping with both memory and bandwidth limitations.The quality and performance of the approach is demonstrated with the interactive exploration of gigatriangle-sized models on common mobile platforms.IT
dc.description.pagenumber99-107IT
dc.identifier.doi10.1145/2466533.2466541IT
dc.identifier.isbn978-1-4503-2133-4IT
dc.identifier.urihttp://hdl.handle.net/11050/906
dc.language.isoenIT
dc.publisherACMIT
dc.relation.ispartofWeb3D '13 Proceedings of the 18th International Conference on 3D Web TechnologyIT
dc.subjectmultiresolution visualizationIT
dc.subjectmobile devicesIT
dc.subjectmobile graphicsIT
dc.subjectmassive modelsIT
dc.subjectcompressed streamingIT
dc.subject.een-cordisEEN CORDIS::ELETTRONICA, INFORMATICA E TELECOMUNICAZIONI::Telecomunicazioni, reti::Telefonia mobileIT
dc.subject.een-cordisEEN CORDIS::ELETTRONICA, INFORMATICA E TELECOMUNICAZIONI::Multimedia::Visualizzazione, realtà virtualeIT
dc.subject.programProgram::Data Fusion::Visual Computing (VIC)IT
dc.titleCompression-domain Seamless Multiresolution Visualization of Gigantic Meshes on Mobile DevicesIT
dc.typeContributo in un libroIT
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