Towards Robust and Efficient Visibility-aware Sensor-based Mobile Spatial Interaction
Key: Zai10-1
Author: Farid Zaid
Date: March 2010
Kind: In proceedings
Abstract: Nowadays, mobile devices are being increasingly equipped with orientation sensors- such as tilt sensors and digital compasses. Together with GPS, these sensors enabled both orientation- and location-aware interaction with spatial points of interest. The ubiquitous integration of cameras in such devices made it even appealing to develop services which overlay spatial information on top of the camera video stream. Although some commercial services like Layar have made their way in the market, these services base their offerings on best-effort performance of the underlying sensors. Besides, such services do not differentiate between points of interest that are really visible from the user's current position and those which should be occluded. While this may be useful for some applications, it can be intolerable for others. The goal of this thesis is on one hand to enhance the robustness of the mobile spatial interaction against sensor imperfections by analysing different sources of errors and suggesting techniques to overcome these errors. On the other hand, the thesis investigates efficient techniques to realize realistic user-centric visibility. In this paper, we highlight the methodologies adopted to achieve these two goals.
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