NDLI: On-the-fly rendering of losslessly compressed irregular volume data

Content Provider	IEEE Xplore Digital Library
Author	Chuan-Kai Yang Mitra, T. Tzi-Cker Chiueh
Copyright Year	2000
Description	Author affiliation: Dept. of Comput. Sci., State Univ. of New York, Stony Brook, NY, USA (Chuan-Kai Yang)
Abstract	Very large irregular-grid data sets are represented as tetrahedral meshes and may incur significant disk I/O access overhead in the rendering process. An effective way to alleviate the disk I/O overhead associated with rendering a large tetrahedral mesh is to reduce the I/O bandwidth requirement through compression. Existing tetrahedral mesh compression algorithms focus only on compression efficiency and cannot be readily integrated into the mesh rendering process, and thus demand that a compressed tetrahedral mesh be decompressed before it can be rendered into a 2D image. This paper presents an integrated tetrahedral mesh compression and rendering algorithm called Gatun, which allows compressed tetrahedral meshes to be rendered incrementally as they are being decompressed, thus leading to an efficient irregular grid rendering pipeline. Both compression and rendering algorithms in Gatun exploit the same local connectivity information among adjacent tetrahedra, and thus can be tightly integrated into a unified implementation framework. Our tetrahedral compression algorithm is specifically designed to facilitate the integration with an irregular grid renderer without any compromise in compression efficiency. A unique performance advantage of Gatun is its ability to reduce the runtime memory footprint requirement by releasing memory allocated to tetrahedra as early as possible.
Starting Page	101
Ending Page	108
File Size	971070
Page Count	8
File Format	PDF
ISBN	0780364783
DOI	10.1109/VISUAL.2000.885682
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-10-13
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Rendering (computer graphics) Image coding Compression algorithms Bandwidth Algorithm design and analysis Streaming media Head Lead compounds Pipelines Chromium
Content Type	Text
Resource Type	Article

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