Compression Domain Volume Rendering

Jens Schneider*, Rüdiger Westermann

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

90 Scopus citations

Abstract

A survey of graphics developers on the issue of texture mapping hardware for volume rendering would most likely find that the vast majority of them view limited texture memory as one of the most serious drawbacks of an otherwise fine technology. In this paper, we propose a compression scheme for static and time-varying volumetric data sets based on vector quantization that allows us to circumvent this limitation. We describe a hierarchical quantization scheme that is based on a multiresolution covariance analysis of the original field. This allows for the efficient encoding of large-scale data sets, yet providing a mechanism to exploit temporal coherence in non-stationary fields. We show, that decoding and rendering the compressed data stream can be done on the graphics chip using programmable hardware. In this way, data transfer between the CPU and the graphics processing unit (GPU) can be minimized thus enabling flexible and memory efficient real-time rendering options. We demonstrate the effectiveness of our approach by demonstrating interactive renditions, of Gigabyte data sets at reasonable fidelity on commodity graphics hardware.

Original languageEnglish (US)
Pages293-300
Number of pages8
DOIs
StatePublished - Nov 24 2003
EventVIS 2003 PROCEEDINGS - Seattle, WA, United States
Duration: Oct 19 2003Oct 24 2003

Other

OtherVIS 2003 PROCEEDINGS
CountryUnited States
CitySeattle, WA
Period10/19/0310/24/03

Keywords

  • Graphics Hardware
  • I.3.Volume Rendering
  • Texture Compression
  • Vector Quantization

ASJC Scopus subject areas

  • Software
  • Computer Science(all)
  • Engineering(all)
  • Computer Graphics and Computer-Aided Design

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