Hasso-Plattner-Institut
  
Hasso-Plattner-Institut
Prof. Dr. Jürgen Döllner
  
 

Publications

Depth Cue of Occlusion Information as Criterion for the Quality of Annotation Placement in Perspective Views

Maass, Stefan and Jobst, Markus and Döllner, Jürgen
In Sara Irina Fabrikant and Monica Wachowicz, ed., The European Information Society - Leading the Way with Geo-information, of Lecture Notes in Geoinformation and Cartography, pages 473–486, 2007 Springer.

Abstract:

In cartography and computational geometry, concepts and techniques for automated label placement have been developed for two-dimensional maps. Less is known whether these methods can be applied to annotate geovirtual 3D environments. In this paper we discuss the application of these methods within geovirtual 3D environments and investigate the effects that can possibly harm the information transfer. To achieve high quality labeling readability, visibility, and the unambiguous correlation to the reference have to be ensured. Illustrated by examples, we show that perspective attributes inherently encoded in a depiction have to be considered as well. In particular, we focus on overriding occlusion information by added annotations and the impact on the complexity of the cognition process. A user test verifies our hypothesis that this disturbance is actually noticeable by users.

Keywords:

annotation, labeling, depth-cues, 3d geo-virtual environments

BibTeX file

@inproceedings{MJD07,
author = { Maass, Stefan and Jobst, Markus and D{\"o}llner, J{\"u}rgen },
title = { Depth Cue of Occlusion Information as Criterion for the Quality of Annotation Placement in Perspective Views },
booktitle = { The European Information Society - Leading the Way with Geo-information },
pages = { 473--486 },
year = { 2007 },
editor = { Sara Irina Fabrikant and Monica Wachowicz },
publisher = { Springer },
series = { Lecture Notes in Geoinformation and Cartography }
}

Copyright Notice

This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.

last change: Fri, 14 Aug 2009 10:48:52 +0200