Time-critical multiresolution volume rendering using 3D texture mapping hardware

Authors:
Xinyue Li;Han-Wei Shen
Affiliations:
The Ohio State University, Columbus, Ohio;The Ohio State University, Columbus, Ohio
Venue:
VVS '02 Proceedings of the 2002 IEEE symposium on Volume visualization and graphics
Year:
2002

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Abstract

This paper presents a LOD selection algorithm for multiresolution volume rendering using 3D texture mapping hardware. The goal of the algorithm is to select appropriate LODs automatically from a volume hierarchy so that the rendering speed will match the user's desired frame rate. To achieve this goal, we devise an intra-frame predictive-reactive scheme, which controls the rendering time by collecting run-time performance statistics and performing dynamic LOD selections. Our algorithm takes into account user-specified volume importance criteria when distributing the time budget, so regions of interest can be rendered at a higher quality. Experiments showed that our algorithm can control the rendering speed with less than 10% of error from the user's target frame rate.