Fast Adaptive Undersampling for Volume Rendering

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dc.contributor.authorBelyaev, Sergey
dc.contributor.authorSmirnov, Pavel
dc.contributor.authorSmirnova, Natalia
dc.contributor.authorShubnikov, Vladislav
dc.contributor.editorSkala, Václav
dc.date.accessioned2019-10-21T08:57:05Z
dc.date.available2019-10-21T08:57:05Z
dc.date.issued2019
dc.description.abstract-translatedAdaptive undersampling is a method for accelerating the rendering process by replacing the calculation of a volume integral with an interpolation procedure for a number of pixels. In this paper, we propose a method for accelerating the volume integral calculation for the rest of the pixels, i.e. those pixels for which interpolation can not be done with sufficient accuracy. This method requires two passes through the input data. On the first pass, rendering is done into a low-resolution texture. At this stage, the values of the volume integral on a set of intervals of a given length are calculated and saved into a special G-buffer alone with the pixel’s color. On the second pass, these values are used to determine colors of the pixels. For those pixels whose result is not precise enough, the volume integral is calculated on one or several intervals, rather than the whole ray. The proposed method allows one to accelerate adaptive undersampling by a factor of 1.5 on average, depending on the input data.en
dc.format6 s.cs
dc.format.mimetypeapplication/pdf
dc.identifier.citationJournal of WSCG. 2018, vol. 26, no. 1, p. 1-6.en
dc.identifier.doihttps://doi.org/10.24132/JWSCG.2019.27.1.1
dc.identifier.issn1213-6964 (on-line)
dc.identifier.issn1213-6972 (print)
dc.identifier.issn1213-6980 (CD-ROM)
dc.identifier.urihttp://hdl.handle.net/11025/35548
dc.language.isoenen
dc.publisherVáclav Skala - UNION Agencycs
dc.rights© Václav Skala - UNION Agencycs
dc.rights.accessopenAccessen
dc.subjectobjemové vykreslovánícs
dc.subjectpaprskové litícs
dc.subjectadaptivní vzorkovánícs
dc.subject.translatedvolume renderingen
dc.subject.translatedray castingen
dc.subject.translatedadaptive samplingen
dc.titleFast Adaptive Undersampling for Volume Renderingen
dc.typečlánekcs
dc.typearticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen

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Volume 27, Number 1 (2019)