Smart graphics in adaptive way descriptions

ABSTRACT

While car navigation systems are widely commercialized already today, pedestrian information systems are still in the early research stage. However, recent progress in mobile computing has opened perspectives for pedestrian navigation systems. In this context, graphics is and will still be an important modality to convey all types of route information. This paper will address the question how to generate graphics for navigation systems that help pedestrians, e.g., airport passengers, city tourists or conference attendees, to find their way in complex environments. We will discuss how the presentation of graphics can be tailored to various technical and cognitive constraints, and we will demonstrate our ideas within a scenario where a passenger of an airport gets navigational help from a stationary info booth and afterwards on her way via a handheld device (PDA). Both the 3D visualization at the info booth and the sketch-like presentation on the PDA are generated from the same data and by the same system, yet are adapted to the specific situation, output medium and user as far as possible.

REFERENCES

• 1: E. Andre, W. Graf, J. Heinsohn, B. Nebe!, H.-J. Profitlich, T. Rist, A. Schauder, and W. Wahlster. PPP - Personalized Plan-Based Presenter. Technical Report D-93-5, DFKI, Saarbrficken, 1993.
• 2: A. D. Baddeley. Working Memory. Oxford University press, Oxford, 1986.
• 3: J. Baus, A. Butz, and A. Kr"uger. One way interaction: interactivity over unidirectional links". In Proceedings of the IJ workshop on Adaptive Design of Interactive Multimedia Presentations for Mobile Users. i3, 1999.
• 4: A. Butz. Anymation with CATHI. In Proceedings of AAAI/IAAI '97, pages 957-962. AAAI Press, 1997.
• 5: Sonu Chopra-Khullar , Norman I. Badler, Where to look? Automating attending behaviors of virtual human characters, Proceedings of the third annual conference on Autonomous Agents, p.16-23, April 1999, Seattle, Washington, United States [doi>10.1145/301136.301152]
• 6: T. Todd Elvins , David R. Nadeau , Rina Schul , David Kirsh, Worldlets: 3D thumbnails for 3D browsing, Proceedings of the SIGCHI conference on Human factors in computing systems, p.163-170, April 18-23, 1998, Los Angeles, California, United States [doi>10.1145/274644.274669]
• 7: W. Graft Laylab: A constraint-based layout manager for multimedia presentations. In G. Salvendy and M. Smith, editors, Proc. of the 5th International Conference on Human-Computer Interaction (jointly with 9th Symposium on Human later}aces, Japan, ~993.
• 8: W. Lewis Johnson , Jeff Rickel, Steve: an animated pedagogical agent for procedural training in virtual environments, ACM SIGART Bulletin, v.8 n.1-4, p.16-21, 1997 [doi>10.1145/272874.272877]
• 9: T. Noma and N. I. Badler. A virtual human presenter. In Proceedings of the IJCAI Workshop om Animated Interface Agents: Making Them Intelligent, pages 45-51, 1997.
• 10: S. Schlechtweg and T. Strothotte. Rendering line-drawings with limited resources. In Proceedings of GraphiCon'96, pages 131-137, July 1996. _
• 11: T. Strothotte. Abstraction in Interactive Computational Visualization: Exploring Complex Information Spaces. Springer, 1998.

INDEX TERMS

Primary Classification:
  J. Computer Applications
  J.7 COMPUTERS IN OTHER SYSTEMS
      Subjects: Consumer products

Additional Classification:
  I. Computing Methodologies
  I.3 COMPUTER GRAPHICS

General Terms:
Design, Human Factors, Performance, Theory