Split-Voxel: A Simple Discontinuity-Preserving Voxel Representation for Volume Rendering

dc.contributor.authorAgus, Marcoen_US
dc.contributor.authorGobbetti, Enricoen_US
dc.contributor.authorGuitián, José Antonio Iglesiasen_US
dc.contributor.authorMarton, Fabioen_US
dc.contributor.editorRuediger Westermann and Gordon Kindlmannen_US
dc.date.accessioned2014-01-29T18:00:17Z
dc.date.available2014-01-29T18:00:17Z
dc.date.issued2010en_US
dc.description.abstractThe most common representation of volumetric models is a regular grid of cubical voxels with one value each, from which a smooth scalar field is reconstructed. However, common real-world situations include cases in which volumes represent physical objects with well defined boundaries separating different materials, giving rise to models with quasi-impulsive gradient fields. In our split-voxel representation, we replace blocks of N 3 voxels by one single voxel that is split by a feature plane into two regions with constant values. This representation has little overhead over storing precomputed gradients, and has the advantage that feature planes provide minimal geometric information about the underlying volume regions that can be effectively exploited for volume rendering. We show how to convert a standard mono-resolution representation into a out-of-core multiresolution structure, both for labeled and continuous scalar volumes. We also show how to interactively explore the models using a multiresolution GPU raycasting framework. The technique supports real-time transfer function manipulation and proves particularly useful for fast multiresolution rendering, since accurate silhouettes are preserved even at very coarse levels of detail.en_US
dc.description.seriesinformationIEEE/ EG Symposium on Volume Graphicsen_US
dc.identifier.isbn978-3-905674-23-1en_US
dc.identifier.issn1727-8376en_US
dc.identifier.urihttps://doi.org/10.2312/VG/VG10/021-028en_US
dc.publisherThe Eurographics Associationen_US
dc.subjectCategories and Subject Descriptors (according to ACM CCS): Computer Graphics [I.3.3]: Picture and Image Generation; Computer Graphics [I.3.7]: Three-Dimensional Graphics and Realism.en_US
dc.titleSplit-Voxel: A Simple Discontinuity-Preserving Voxel Representation for Volume Renderingen_US
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