Information

• Publication Type: Technical Report
• Workgroup(s)/Project(s): not specified
• Date: April 2000
• Number: TR-186-2-00-11
• Keywords: dynamical systems, interactive visualization, maximum intensity projection, direct volume rendering

Abstract

In this paper we present a two-level approach for fusing direct volume rendering (DVR) and maximum-intensity projection (MIP) within a joint rendering method. Different structures within the data-set are rendered locally by either MIP or DVR on an object-by-object basis. Globally all the results of subsequent object renderings are combined in a merging step (usually compositing in our case). This allows to selectively choose the most suitable technique for depicting each object within the data, while keeping the amount of information contained in the image at a reasonable level. This is especially useful when inner structures should be visualized together with semi-transparent outer parts, similar to the focus-and-context approach known from information visualization. We also present an implementation of our

approach, which allows to explore volumetric data using two-level rendering at interactive frame rates.

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BibTeX

@techreport{Hauser-2000-TwoX,
  title =      "Two-level volume rendering - fusing MIP and DVR",
  author =     "Helwig Hauser and Lukas Mroz and Gian-Italo Bischi and
               Meister Eduard Gr\"{o}ller",
  year =       "2000",
  abstract =   "In this paper we present a two-level approach for fusing
               direct volume rendering (DVR) and maximum-intensity
               projection (MIP) within a joint rendering method. Different
               structures within the data-set are rendered locally by
               either MIP or DVR on an object-by-object basis.  Globally
               all the results of subsequent object renderings are combined
               in a merging step (usually compositing in our case).  This
               allows to selectively choose the most suitable technique for
               depicting each object within the data, while keeping the
               amount of information contained in the image at a reasonable
               level. This is especially useful when inner structures
               should be visualized together with semi-transparent outer
               parts, similar to the focus-and-context approach known from
               information visualization. We also present an implementation
               of our  approach, which allows to explore volumetric data
               using two-level rendering at interactive frame rates. ",
  month =      apr,
  number =     "TR-186-2-00-11",
  address =    "Favoritenstrasse 9-11/E193-02, A-1040 Vienna, Austria",
  institution = "Institute of Computer Graphics and Algorithms, Vienna
               University of Technology ",
  note =       "human contact: technical-report@cg.tuwien.ac.at",
  keywords =   "dynamical systems, interactive visualization, maximum
               intensity projection, direct volume rendering",
  URL =        "/research/publications/2000/Hauser-2000-TwoX/",
}