Perceptual evaluation of ghosted view techniques for the exploration of vascular structures and embedded flow

Authors:
Alexandra Baer;Rocco Gasteiger;Douglas Cunningham;Bernhard Preim
Affiliations:
Department of Simulation and Graphics, University of Magdeburg, Germany;Department of Simulation and Graphics, University of Magdeburg, Germany;Institute of Graphical Systems, University of Cottbus, Germany;Department of Simulation and Graphics, University of Magdeburg, Germany
Venue:
EuroVis'11 Proceedings of the 13th Eurographics / IEEE - VGTC conference on Visualization
Year:
2011

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Abstract

This paper presents three controlled perceptual studies investigating the visualization of the cerebral aneurysm anatomy with embedded flow visualization. We evaluate and compare the common semitransparent visualization technique with a ghosted view and a ghosted view with depth enhancement technique. We analyze the techniques' ability to facilitate and support the shape and spatial representation of the aneurysm models as well as evaluating the smart visibility characteristics. The techniques are evaluated with respect to the participants accuracy, response time and their personal preferences. We used as stimuli 3D aneurysm models of five clinical datasets. There was overwhelming preference for the two ghosted view techniques over the semitransparent technique. Since smart visibility techniques are rarely evaluated, this paper may serve as orientation for further studies.