Feature based volumetric video compression for interactive playback

Author

Sohn, Bong-Soo ; Bajaj, Chandrajit ; Siddavanahalli, Vinay

Author_Institution

Dept. of Comput. Sci., Texas Univ., Austin, TX, USA

fYear

2002

fDate

28-29 Oct. 2002

Firstpage

89

Lastpage

96

Abstract

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.

Keywords

data compression; data visualisation; feature extraction; image reconstruction; rendering (computer graphics); video coding; amorphous volumetric features; compression scheme; encoding; fast reconstruction; interactive visualization; isocontouring; isosurfaces; reconstruction; rendering; volumetric features; Amorphous materials; Data visualization; Image coding; Isosurfaces; Ocean temperature; Rendering (computer graphics); Sea surface; Transform coding; Video compression; Wavelet transforms;

fLanguage

English

Publisher

ieee

Conference_Titel

Volume Visualization and Graphics, 2002. Proceedings. IEEE / ACM SIGGRAPH Symposium on

Print_ISBN

0-7803-7641-2

Type

conf

DOI

10.1109/SWG.2002.1226514

Filename

1226514