NDLI: Multi-resolution Volume Rendering of Large Time-Varying Data using Video-based Compression

Content Provider	IEEE Xplore Digital Library
Author	Chia-Lin Ko Horng-Shyang Liao Tsai-Pei Wang Kuang-Wei Fu Ching-Yao Lin Jung-Hong Chuang
Copyright Year	2008
Description	Author affiliation: Nat. Chiao Tung Univ., Hsinchu (Chia-Lin Ko; Horng-Shyang Liao; Tsai-Pei Wang; Kuang-Wei Fu)
Abstract	We present a new framework that combines the hierarchical multi-resolution representation with video-based compression to manage and render large scale time-varying data. In the preprocessing step, the proposed method first constructs a multi-resolution hierarchy using octree structure for each individual time step, and then applies a motion-compensation-based prediction to compress the octree nodes. During rendering stage, the data is decompressed on-the-fly and rendered using hardware texture mapping. The proposed approach eliminates the hierarchical decompression dependency commonly found in the conventional hierarchical wavelet representation methods, which leads to a more efficient reconstruction of data along the time axis. The system provides the user with a spatial region-of-interest (ROI) to adjust the spatial level-of-detail (LOD) selection, and a temporal ROI which is a sub-region only for frequent update during playback. With a suitable control of both ROIs, our system can reach an interactive playback frame rate. This allows the user to observe the dynamic nature of large time-varying data sets.
Starting Page	135
Ending Page	142
File Size	14266072
Page Count	8
File Format	PDF
ISBN	9781424419661
DOI	10.1109/PACIFICVIS.2008.4475469
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-03-05
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wavelet transforms motion-compensation time-varying volume rendering volume compression level-of-detail volume visualization Multiresolution analysis Computer science Interpolation Data visualization Computer graphics wavelet Rendering (computer graphics) Hardware Data communication Spatial resolution
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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