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dc.creatorMaximino Bessa
dc.creatorAntónio Coelho
dc.creatorAlan Chalmers
dc.description.abstractThe perception that we have of our world depends on the task we are currently performing in the environment, so if we are driving a car we will pay attention to the objects that are visually important to the task we are performing such as, the road, road signs, other vehicles, etc. The same is true when we explore virtual environments. The creation of high-fidelity 3D maps on mobile devices to aid navigation in urban environments is computationally very expensive, precluding achieving this quality at interactive rates. In this paper we present a case study to show how the human visual system may be exploited, when viewers are undertaking a task, to reduce the overall quality of the displayed image, without the users being aware of this reduction in quality. The displayed images are selectively rendered with the key features used to identify location and orientation in a 3D urban environment produced in high quality and the remainder of the image in low quality.
dc.relation.ispartofProceedings of the 4th International Conference on Mobile and Ubiquitous Multimedia, MUM '05
dc.subjectComputação gráfica, Engenharia electrotécnica, electrónica e informática
dc.subjectComputer graphics, Electrical engineering, Electronic engineering, Information engineering
dc.titleSelective rendering quality for an efficient navigational aid in virtual urban environments on mobile platforms
dc.typeArtigo em Livro de Atas de Conferência Internacional
dc.contributor.uportoFaculdade de Engenharia
dc.subject.fosCiências da engenharia e tecnologias::Engenharia electrotécnica, electrónica e informática
dc.subject.fosEngineering and technology::Electrical engineering, Electronic engineering, Information engineering
Appears in Collections:FEUP - Artigo em Livro de Atas de Conferência Internacional

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