ClearView: An Interactive Context Preserving Hotspot Visualization Technique

Volume rendered imagery often includes a barrage of 3D information like shape, appearance and topology of complex structures, and it thus quickly overwhelms the user. In particular, when focusing on a specific region a user cannot observe the relationship between various structures unless he has a m...

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Bibliographic Details
Published in:IEEE transactions on visualization and computer graphics Vol. 12; no. 5; pp. 941 - 948
Main Authors: Kruger, Jens, Schneider, Jens, Westermann, Rudiger
Format: Journal Article
Language:English
Published: United States IEEE 01.09.2006
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects:
Algorithms
Clutter
Computer Graphics
Computer Simulation
Context
Data visualization
Focus & Context
Focusing
GPU rendering
Humans
Image Enhancement - methods
Image Interpretation, Computer-Assisted - methods
Imaging, Three-Dimensional - methods
Information filtering
Information filters
Information Storage and Retrieval - methods
Interactive
Models, Anatomic
Navigation
Pictures
Preserving
Rendering (computer graphics)
Shape
Software
Three dimensional
Topology
User-Computer Interface
Visualization
volume raycasting
ISSN:1077-2626, 1941-0506
Online Access:Get full text
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Summary:Volume rendered imagery often includes a barrage of 3D information like shape, appearance and topology of complex structures, and it thus quickly overwhelms the user. In particular, when focusing on a specific region a user cannot observe the relationship between various structures unless he has a mental picture of the entire data. In this paper we present ClearView, a GPU-based, interactive framework for texture-based volume ray-casting that allows users which do not have the visualization skills for this mental exercise to quickly obtain a picture of the data in a very intuitive and user-friendly way. ClearView is designed to enable the user to focus on particular areas in the data while preserving context information without visual clutter. ClearView does not require additional feature volumes as it derives any features in the data from image information only. A simple point-and-click interface enables the user to interactively highlight structures in the data. ClearView provides an easy to use interface to complex volumetric data as it only uses transparency in combination with a few specific shaders to convey focus and context information
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ISSN:1077-2626
1941-0506
DOI:10.1109/TVCG.2006.124