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

• Tipo: Artigo em Revista Científica Internacional
• Data: 2006

Autores

Maximino Bessa (Autor) Outra; António Coelho (Autor) FEUP; José Bulas Cruz (Autor) Outra; Alan Chalmers (Autor) Outra

Revista

Título: International Journal of Pattern Recognition and Artificial Intelligence

Vol. 20 Nº 4

Páginas: 467-482

ISSN: 0218-0014

Editora: World Scientific

Indexação

ISI Proceedings

ISI Web of Knowledge - 1 Citação

ISI Web of Science

Scopus - 2 Citações

COMPENDEX

Classificação Científica

FOS: Ciências exactas e naturais > Ciências da computação e da informação

Outras Informações

ID Authenticus: P-004-KF5

DOI: 10.1142/s021800140600479x

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.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 16