Efficient Raycasting of View-Dependent Piecewise Constant Representations of Volumetric Data
Efficient Raycasting of View-Dependent Piecewise Constant Representations of Volumetric Data
Gupta, A.; Günther, U.; Incardona, P.; Reina, G.; Frey, S.; Gumhold, S.; Sbalzarini, I. F.
Abstract
We present an efficient raycasting-based rendering algorithm for view-dependent piecewise constant representations of volumetric data. Our algorithm leverages the properties of perspective projection to simplify intersections of rays with the view-dependent frustums that form part of these representations. It also leverages spatial homogeneity in the underlying volume data to minimize memory accesses. We further introduce techniques for skipping empty-space and for dynamic subsampling for accelerated approximate renderings at controlled frame rates. Benchmarks show that responsive frame rates can be achieved close to the viewpoint of generation for HD display resolutions, while providing high-fidelity approximate renderings of Gigabyte-sized volumes.
Keywords: Visualization; Volume rendering; Raycasting
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WWW-Beitrag
arXiv: https://arxiv.org/abs/2206.08660
DOI: 10.48550/arXiv.2206.08660
arXiv: 2206.08660 -
WWW-Beitrag
https://arxiv.org/abs/2206.08660v2
DOI: 10.48550/arXiv.2206.08660
arXiv: 2206.08660v2 -
Beitrag zu Proceedings
The 16th IEEE Pacific Visualization Symposium, 18.-21.04.2023, Seoul, Korea
2023 IEEE 16th Pacific Visualization Symposium (PacificVis), Seoul, Korea, Republic of
DOI: 10.1109/PacificVis56936.2023.00014
Permalink: https://www.hzdr.de/publications/Publ-36113