Adaptive Sampling in Single Pass, GPU-based Raycasting of Multiresolution Volumes
2006 (English)In: Proceedings Eurographics/IEEE International Workshop on Volume Graphics 2006, Boston, USA, 2006, 39-46 p.Conference paper (Other academic)
This paper presents a novel direct volume rendering technique for adaptive object- and image-space sampling density of multiresolution volumes. The raycasting is implemented entirely on the GPU in a single pass fragment program which adapts the sampling density along rays, guided by block resolutions. The multiresolution volumes are provided by a transfer function based level-of-detail scheme adaptively loading large out-of-core volumes. Adaptive image-space sampling is achieved by gathering projected basic volume block statistics for screen tiles and then allocating a level-of-detail for each tile. This combination of techniques provides a significant reduction of processing requirements while maintaining high quality rendering.
Place, publisher, year, edition, pages
2006. 39-46 p.
Viewing algorithms; Image Processing; Computer Vision
Engineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-13947DOI: 10.2312/VG/VG06/039-046OAI: oai:DiVA.org:liu-13947DiVA: diva2:22277