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Selective presentation of perceptually important information to aid orientation and navigation in an urban environment

Title
Selective presentation of perceptually important information to aid orientation and navigation in an urban environment
Type
Article in International Scientific Journal
Year
2006
Authors
Maximino Bessa
(Author)
Other
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António Coelho
(Author)
FEUP
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José Bulas Cruz
(Author)
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Alan Chalmers
(Author)
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Journal
Vol. 20 No. 4
Pages: 467-482
ISSN: 0218-0014
Publisher: World Scientific
Indexing
Publicação em ISI Proceedings ISI Proceedings
Publicação em ISI Web of Science ISI Web of Science
COMPENDEX
Scientific classification
FOS: Natural sciences > Computer and information sciences
Other information
Authenticus ID: P-004-KF5
Abstract (EN): A map can be a major advantage when exploring unfamiliar environments. With the proliferation of mobile devices, such as PDAs and even mobile phones, the tourist industry is currently exploring the potential of new presentation strategies that will maximize the promotional appeal of tourism in their region. Mobile devices are capable of guiding a tourist when he/she is exploring a city. These mobile devices offer the potential for providing relevant 3D information to enable tourists to locate themselves within the city, rapidly navigate around the unfamiliar environment and explore it interactively. However, the computational resources of current mobile technology prevents the display of full complex 3D content in real-time, and thus selective rendering techniques must be adopted to ensure the viewer is provided with the perceptually most important information at interactive rates. This paper presents a series of experiments which help to identify key features of a scene for users to orientate themselves in that environment. Knowledge of these salient key features enable them to be provided to a user at a high quality while the remainder of the scene can be rendered in a much lower quality, saving significant bandwidth and computing power, without the user being perceptually aware of this difference in quality within the image.
Language: English
Type (Professor's evaluation): Scientific
Contact: maxbessa@utad.pt; acoelho@utad.pt; jcruz@utad.pt; alan@cs.bris.ac.uk
No. of pages: 16
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