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Visualization of Time-Varying Volumetric Data using Differential Time-Histogram Table

Abstract

We introduce a novel data structure called Differential Time-Histogram Table (DTHT) for visualization of timevarying scalar data. This data structure only stores voxels that are changing between time-steps or during transfer function updates. It allows ef?cient updates of data necessary for rendering during a sequence of queries common during data exploration and visualization. The table is used to update the values held in memory so that ef?cient visualization is supported while guaranteeing that the scalar ?eld visualized is within a given error tolerance of the scalar ?eld sampled. Our data structure allows updates of time-steps in the order of tens of frames per second for volumes of sizes of 4.5GB, enabling real-time time-sliders.

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Supplemental Material
Citation
Category
Paper in Conference Proceedings or in Workshop Proceedings (Full Paper in Proceedings)
Event Title
Fourth International Workshop on Volume Graphics, 2005
Divisions
Visualization and Data Analysis
Subjects
Computergraphik
Event Location
Stony Brook, NY
Event Type
Workshop
Event Dates
20-21 June 2005
Date
June 2005
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