Feature based volumetric video compression for interactive playback
Feature based volumetric video compression for interactive playback
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DOI：
10.1109/swg.2002.1226514
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发表时间：
2002-10
期刊：
影响因子：
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通讯作者：
Bong-Soo Sohn;C. Bajaj;Vinay Siddavanahalli
中科院分区：
文献类型：
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作者：
Bong-Soo Sohn;C. Bajaj;Vinay Siddavanahalli
本文描述了一种统一编码时变等值面和无定形体积特征（特定值范围内的体积）的压缩方案，该方案允许在线重构和渲染。时变数据集中每一帧数据的大小都非常大，传输和在线重建是时变体积和曲面数据交互可视化的主要瓶颈。为了提高运行时的解压速度和压缩比，我们将体积分解成小块，只编码对等面和体积特征有贡献的重要块。结果表明，我们的压缩方案实现了高压缩比和快速重构，对于具有无定形体积特征的时变等值面的客户端渲染是有效的。
In this paper, we describe a compression scheme for encoding time-varying isosurfaces and amorphous volumetric features (volumes within specified value ranges) in a unified way, which allows for on-line reconstruction and rendering. Since the size of even one frame in a time-varying data set is very large, transmission and online reconstruction are the main bottlenecks for interactive visualization of time-varying volume and surface data. To increase the run-time decompression speed and compression ratio, we decompose the volume into small blocks and encode only the significant blocks that contribute to the isosurface and volumetric features. The result shows that our compression scheme achieves high compression ratio with fast reconstruction, which is effective for client-side rendering of time-varying isosurfaces with amorphous volumetric features.