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   -> Volume 6, Issue 5

Preprint: Compression Domain Volume Rendering
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"Lars Lippert" (

PostPosted: Tue Apr 29, 1997 12:46 am    
Subject: Preprint: Compression Domain Volume Rendering
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#6 Preprint: Compression Domain Volume Rendering

Title: Compression Domain Volume Rendering for Distributed Environments.
Authors: Lippert, L.; Gross, M.H.; Kurmann, C.

Abstract: This paper describes a method for volume data compression
and rendering which bases on wavelet splats. The underlying concept is
especially designed for distributed and networked applications, where
we assume a remote server to maintain large scale volume data sets,
being inspected, browsed through and rendered interactively by a local
client. Therefore, we encode the server`s volume data using a newly
designed wavelet based volume compression method. A local client can
render the volumes immediately from the compression domain by using
wavelet footprints, a method proposed earlier. In addition, our setup
features full progression, where the rendered image is refined
progressively as data comes in. Furthermore, framerate constraints are
considered by controlling the quality of the image both locally and
globally depending on the current network bandwidth or computational
capabilities of the client. As a very important aspect of our setup,
the client does not need to provide storage for the volume data and
can be implemented in terms of a network application. The underlying
framework enables to exploit all advantageous properties of the
wavelet transform and forms a basis for both sophisticated lossy
compression and rendering. Although coming along with simple
illumination and constant exponential decay, the rendering method is
especially suited for fast interactive inspection of large data sets
and can be supported easily by graphics hardware.

Lars Lippert Computer Graphics Research Group

Institute for Information Systems
Swiss Federal Institute of Technology Zuerich

Tel.: +41-1-632 71 21 Email:
Fax : +41-1-632 11 72 Office: IFW E45.2
All times are GMT + 1 Hour
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