Exploded Views for Volume Data

Stefan Bruckner, Meister Eduard Gröller
Exploded Views for Volume Data
IEEE Transactions on Visualization and Computer Graphics, 12(5):1077-1084, September 2006. [ Paper]
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Also available in TR-186-2-06-03.

Abstract

Exploded views are an illustration technique where an object is partitioned into several segments. These segments are displaced to reveal otherwise hidden detail. In this paper we apply the concept of exploded views to volumetric data in order to solve the general problem of occlusion. In many cases an object of interest is occluded by other structures. While transparency or cutaways can be used to reveal a focus object, these techniques remove parts of the context information. Exploded views, on the other hand, do not suffer from this drawback. Our approach employs a force-based model: the volume is divided into a part configuration controlled by a number of forces and constraints. The focus object exerts an explosion force causing the parts to arrange according to the given constraints. We show that this novel and flexible approach allows for a wide variety of explosion-based visualizations including view-dependent explosions. Furthermore, we present a high-quality GPU-based volume ray casting algorithm for exploded views which allows rendering and interaction at several frames per second.

Additional Files and Images

Additional files:
Demonstration Demonstration: Exploded views demonstration (DivX encoded AVI video)
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Paper
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BibTeX

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@article{bruckner-2006-EVV,
  title =      "Exploded Views for Volume Data",
  author =     "Stefan Bruckner and Meister Eduard Gr{\"o}ller",
  year =       "2006",
  abstract =   "Exploded views are an illustration technique where an object
               is partitioned into several segments. These segments are
               displaced to reveal otherwise hidden detail. In this paper
               we apply the concept of exploded views to volumetric data in
               order to solve the general problem of occlusion. In many
               cases an object of interest is occluded by other structures.
               While transparency or cutaways can be used to reveal a focus
               object, these techniques remove parts of the context
               information. Exploded views, on the other hand, do not
               suffer from this drawback. Our approach employs a
               force-based model: the volume is divided into a part
               configuration controlled by a number of forces and
               constraints. The focus object exerts an explosion force
               causing the parts to arrange according to the given
               constraints. We show that this novel and flexible approach
               allows for a wide variety of explosion-based visualizations
               including view-dependent explosions. Furthermore, we present
               a high-quality GPU-based volume ray casting algorithm for
               exploded views which allows rendering and interaction at
               several frames per second.",
  pages =      "1077--1084",
  month =      9,
  number =     "5",
  event =      "IEEE Visualization 2006",
  issn =       "1077-2626",
  journal =    "IEEE Transactions on Visualization and Computer Graphics",
  volume =     "12",
  keywords =   "exploded views, illustrative visualization, volume rendering",
  URL =        "http://www.cg.tuwien.ac.at/research/publications/2006/bruckner-2006-EVV/",
}