Illustrative Context-Preserving Volume Rendering | TU Wien

Information

Publication Type: Conference Paper
Workgroup(s)/Project(s):
- ADAPT: Advanced Diagnosis, Analysis and Planning Tools (in Medicine)
Date: May 2005
Lecturer: Stefan Bruckner
Booktitle: Proceedings of EuroVis 2005
Pages: 69 – 76
Keywords: non-photorealistic techniques, focus+context techniques, volume rendering

Abstract

In volume rendering it is very difficult to simultaneously visualize interior and exterior structures while preserving clear shape cues. Very transparent transfer functions produce cluttered images with many overlapping structures, while clipping techniques completely remove possibly important context information. In this paper we present a new model for volume rendering, inspired by techniques from illustration that provides a means of interactively inspecting the interior of a volumetric data set in a feature-driven way which retains context information. The context-preserving volume rendering model uses a function of shading intensity, gradient magnitude, distance to the eye point, and previously accumulated opacity to selectively reduce the opacity in less important data regions. It is controlled by two user-specified parameters. This new method represents an alternative to conventional clipping techniques, shares their easy and intuitive user control, but does not suffer from the drawback of missing context information.

Additional Files and Images

Additional images and videos

Hand - DivX: Context-Preserving Volume Rendering of a human hand

Hand - Indeo: Context-Preserving Volume Rendering of a human hand

Head - DivX: Context-Preserving Volume Rendering of a human head

Head - Indeo: Context-Preserving Volume Rendering of a human head

image: Context-Preserving Volume Rendering of a human hand

Tooth - DivX: comparison of Context-Preserving Volume Rendering with other techniques

Tooth - Indeo: comparison of Context-Preserving Volume Rendering with other techniques

Visible Human - DivX: Context-Preserving Volume Rendering of the Visible Human dataset

Visible Human - Indeo: Context-Preserving Volume Rendering of the Visible Human dataset

Additional files

Paper: Paper

Slides: powerpoint slides of EuroVis 2005 presentation

Weblinks

No further information available.

BibTeX

@inproceedings{bruckner-2005-ICV,
  title =      "Illustrative Context-Preserving Volume Rendering",
  author =     "Stefan Bruckner and S\"{o}ren Grimm and Armin Kanitsar and
               Eduard Gr\"{o}ller",
  year =       "2005",
  abstract =   "In volume rendering it is very difficult to simultaneously
               visualize interior and exterior structures while preserving
               clear shape cues. Very transparent transfer functions
               produce cluttered images with many overlapping structures,
               while clipping techniques completely remove possibly
               important context information. In this paper we present a
               new model for volume rendering, inspired by techniques from
               illustration that provides a means of interactively
               inspecting the interior of a volumetric data set in a
               feature-driven way which retains context information. The
               context-preserving volume rendering model uses a function of
               shading intensity, gradient magnitude, distance to the eye
               point, and previously accumulated opacity to selectively
               reduce the opacity in less important data regions. It is
               controlled by two user-specified parameters. This new method
               represents an alternative to conventional clipping
               techniques, shares their easy and intuitive user control,
               but does not suffer from the drawback of missing context
               information. ",
  month =      may,
  booktitle =  "Proceedings of EuroVis 2005",
  pages =      "69--76",
  keywords =   "non-photorealistic techniques, focus+context techniques,
               volume rendering",
  URL =        "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-ICV/",
}