EVALUATION OF VISUALIZATION FEATURES IN THREE-DIMENSIONAL LOCATION-BASED MOBILE SERVICES

Mário Freitas, António Augusto de Sousa, António Coelho

Abstract

Nowadays, there is a wide range of commercial LBMS (Location-Based Mobile Services) available in the market, mainly in the form of GPS-based navigation solutions, and a trend towards the display of 3D maps can be clearly observed. Given the complete disparity of ideas and a visible commercial orientation in the industry, the study of the visualisation aspects that influence user performance and experience in the exploration of urban environments using 3D maps becomes an important issue. In this work, a generic conceptual framework is proposed whose main purpose is to objectively evaluate the impact and contribution of the major visualisation elements involved (henceforth mentioned as feature vectors). With this framework in mind, an online questionnaire was developed and administered to 149 test subjects in order to measure the real impact of feature vectors. The results clearly demonstrated that certain features have clear impact on user performance, and should be taken in account in LBMS development. As an example, just by displaying buildings with a 3D appearance, subjects were able to match more accurately the real environment with the one presented on a mobile device. In general, users were able to perform the tasks entrusted to them faster, if they were provided more realistic imagery.

References

  1. Been, K., Daiches, E., and Yap, C. (2006). Dynamic map labeling. IEEE Transactions on Visualization and Computer Graphics, 12(5):773-780.
  2. Bolin, M. R. and Meyer, G. W. (1999). A visual difference metric for realistic image synthesis. In Proc. SPIE, pages 106-120.
  3. Borenstein, J., Everett, H. R., and Feng, L. (1996). ”Where am I?” - Sensors and Methods for Mobile Robot Positioning. The University of Michigan.
  4. Burigat, S. and Chittaro, L. (2005). Location-aware visualization of vrml models in gps-based mobile guides. In John, N. W., Ressler, S., Chittaro, L., and Duce, D. A., editors, Web3D, pages 57-64. ACM.
  5. Chen, G. and Kotz, D. (2000). A survey of contextaware mobile computing research. Technical Report TR2000-381, Dept. of Computer Science, Dartmouth College.
  6. Coelho, A. (2006). Expeditious Modelling of Virtual Urban Environments based on Interoperability and Geospatial Awareness (in Portuguese). PhD thesis, Faculdade de Engenharia da Universidade do Porto.
  7. Elias, B., Paelke, V., and Kuhnt, S. (2005). Concepts for the cartographic visualization of landmarks. In Proceedings of Symposium 2005 Location Based Services & TeleCartography, page 11.
  8. Ferwerda, J. A. (2003). Three varieties of realism in computer graphics. In In Proceedings SPIE Human Vision and Electronic Imaging 7803, pages 290-297.
  9. Hunolstein, S. V. and Zipf, A. (2003). Towards task oriented map-based mobile guides. In Workshop ”HCI in Mobile Guides” at Mobile HCI 2003. 5th International Symp. on HCI with Mobile Devices and Services.
  10. Lange, E. and Ch, Z. R. (2003). The degree of realism of GIS-based virtual landscapes: Implications for spatial planning. In D. Fritsch and R. Spiller (eds) Photogrammetric Week 7899, pages 367-374.
  11. McNamara, A., Chalmers, A., and Trocianko, T. (2000). Visual perception in realistic image synthesis. In Coquillart, S. and Duke, D., editors, STAR Proceedings of Eurographics 2000, Interlaken, Switzerland. Eurographics Association.
  12. Milgram, P. and Kishino, F. (1994). A taxonomy of mixed reality visual displays. IEICE Transactions on Information Systems, E77-D(12):1321-1329.
  13. Nurminen, A. (2006). The m-loma mobile 3d map project website. http://www.init.hut.fi/research %26projects/m-loma/. Last Checked: November, 2008.
  14. Rademacher, P., Lengyel, J., Cutrell, E., and Whitted, T. (2001). Measuring the perception of visual realism in images. In Proceedings of the 12th Eurographics Workshop on Rendering Techniques, pages 235-248, London, UK. Springer-Verlag.
  15. van Dijk, S., van Kreveld, M., Strijk, T., and Wolff, A. (1999). Towards an evaluation of quality for label placement methods. In Proc. 19th Internat. Cartographic Conf. (ICC'99), pages 905-913, Ottawa, Canada. Internat. Cartographic Association.
  16. Wolff, A. (1999). Automated label placement in theory and practice. In PhD thesis, Freie Universit ät.
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Paper Citation


in Harvard Style

Freitas M., de Sousa A. and Coelho A. (2009). EVALUATION OF VISUALIZATION FEATURES IN THREE-DIMENSIONAL LOCATION-BASED MOBILE SERVICES . In Proceedings of the Fourth International Conference on Computer Graphics Theory and Applications - Volume 1: GRAPP, (VISIGRAPP 2009) ISBN 978-989-8111-67-8, pages 328-336. DOI: 10.5220/0001805903280336


in Bibtex Style

@conference{grapp09,
author={Mário Freitas and António Augusto de Sousa and António Coelho},
title={EVALUATION OF VISUALIZATION FEATURES IN THREE-DIMENSIONAL LOCATION-BASED MOBILE SERVICES },
booktitle={Proceedings of the Fourth International Conference on Computer Graphics Theory and Applications - Volume 1: GRAPP, (VISIGRAPP 2009)},
year={2009},
pages={328-336},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001805903280336},
isbn={978-989-8111-67-8},
}


in EndNote Style

TY - CONF
JO - Proceedings of the Fourth International Conference on Computer Graphics Theory and Applications - Volume 1: GRAPP, (VISIGRAPP 2009)
TI - EVALUATION OF VISUALIZATION FEATURES IN THREE-DIMENSIONAL LOCATION-BASED MOBILE SERVICES
SN - 978-989-8111-67-8
AU - Freitas M.
AU - de Sousa A.
AU - Coelho A.
PY - 2009
SP - 328
EP - 336
DO - 10.5220/0001805903280336