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2016 | OriginalPaper | Buchkapitel

Spatiotemporal LOD-Blending for Artifact Reduction in Multi-resolution Volume Rendering

verfasst von : Sebastian Thiele, Carl-Feofan Matthes, Bernd Froehlich

Erschienen in: Advances in Visual Computing

Verlag: Springer International Publishing

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Abstract

High-quality raycasting of multi-resolution volumetric datasets benefits from a well-informed working set selection that accounts for occlusions as well as output sensitivity. In this work, we suggest a feedback mechanism that provides a fine-grained level-of-detail selection for restricted working sets. To mitigate multi-resolution artifacts, our rendering solution combines spatial and temporal level-of-detail blending to provide smooth transitions between adjacent bricks of differing levels of detail and during working set adjustments. We also show how the sampling along rays needs to be adapted to produce a consistent result. Our implementation demonstrates that our spatiotemporal blending in combination with consistent sampling significantly reduces visual artifacts.

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Metadaten
Titel
Spatiotemporal LOD-Blending for Artifact Reduction in Multi-resolution Volume Rendering
verfasst von
Sebastian Thiele
Carl-Feofan Matthes
Bernd Froehlich
Copyright-Jahr
2016
DOI
https://doi.org/10.1007/978-3-319-50835-1_41