Dynamic view-dependent visualization of unstructured tetrahedral volumetric meshes

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Date

2012-05-01

Author

Okuyan, Erhan
GÜDÜKBAY, UĞUR
İşler, Veysi

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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Visualization of large volumetric datasets has always been an important problem. Due to the high computational requirements of volume-rendering techniques, achieving interactive rates is a real challenge. We present a selective refinement scheme that dynamically refines the mesh according to the camera parameters. This scheme automatically determines the impact of different parts of the mesh on the output image and refines the mesh accordingly, without needing any user input. The view-dependent refinement scheme uses a progressive mesh representation that is based on an edge collapse-based tetrahedral mesh simplification algorithm. We tested our view-dependent refinement framework on an existing state-of-the-art volume renderer. Thanks to low overhead dynamic view-dependent refinement, we achieve interactive frame rates for rendering common datasets at decent image resolutions.

Subject Keywords

Volume visualization, Direct volume rendering, View-dependent refinement, Progressive meshes, Unstructured tetrahedral meshes

URI

https://hdl.handle.net/11511/56788

Journal

JOURNAL OF VISUALIZATION

DOI

https://doi.org/10.1007/s12650-011-0122-x

Collections

Graduate School of Natural and Applied Sciences, Article

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Citation Formats

E. Okuyan, U. GÜDÜKBAY, and V. İşler, “Dynamic view-dependent visualization of unstructured tetrahedral volumetric meshes,” JOURNAL OF VISUALIZATION, pp. 167–178, 2012, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/56788.