Evaluation of visualization features in three-dimensional location-based mobile services

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2009

Autores

Mário Freitas (Autor) Outra; A. Augusto Sousa (Autor) FEUP; António Coelho (Autor) FEUP

Ata de Conferência Internacional

Título: GRAPP 2009: PROCEEDINGS OF THE FOURTH INTERNATIONAL CONFERENCE ON COMPUTER GRAPHICS THEORY AND APPLICATIONS

Páginas: 328-336

4th International Conference on Computer Vision Theory and Applications4th International Conference on Computer Graphics Theory and Applications

Lisbon, PORTUGALLisbon, PORTUGAL, FEB 05-08, 2009FEB 05-08, 2009

Indexação

ISI Proceedings

ISI Web of Knowledge - 1 Citação

Scopus - 1 Citação

INSPEC

Classificação Científica

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

CORDIS: Ciências Tecnológicas > Engenharia > Engenharia de computadores

Outras Informações

ID Authenticus: P-003-Q70

Abstract (EN): 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.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 9