Multi-resolution volume rendering of large time-varying data using video-based compression

Chia Lin Ko*, Horng Shyang Liao, Tsaipei Wang, Kuang Wei Fu, Ching Yao Lin, Jung-Hong Chuang

*此作品的通信作者

研究成果: Conference contribution同行評審

13 引文 斯高帕斯(Scopus)

摘要

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 multiresolution 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.

原文English
主出版物標題IEEE Pacific Visualisation Symposium 2008, PacificVis - Proceedings
頁面135-142
頁數8
DOIs
出版狀態Published - 26 8月 2008
事件2008 Pacific Visualization Symposium, PacificVis 2008 - Kyoto, Japan
持續時間: 4 3月 20087 3月 2008

出版系列

名字IEEE Pacific Visualisation Symposium 2008, PacificVis - Proceedings

Conference

Conference2008 Pacific Visualization Symposium, PacificVis 2008
國家/地區Japan
城市Kyoto
期間4/03/087/03/08

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