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Frames of Reference for Portable Device Interaction
Sile O'Modhrain
Sonic Arts Research CentreQueens University, Belfast
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Position Statement• Increasingly mobile devices are being enhanced
by the addition of sensors These can provide feedback about their location, motion
and orientation
• Applications for such devices are situated in real-world frames of reference Device-centred, body-centred, world-centred
• Our work seeks to to build on the users' pre-existing skills and expectations from the real world to support movement-based interactions that may
transcend these multiple frames of reference.
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Example Applications
Tilting Maze Body Mnemonics
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Example Applications
Topographic TorchGPS and magnetic compass sensing are combined with inertial sensing to provide an egocentric reference for a city map.
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Proposal • As mobile devices become more powerful, the
designer of applications for the mobile user is likely to have to negotiate a design space with multiple frames of reference for a user's actions.
• Here a better understanding of the senses of touch, of the body's motion and its sense of its own motion, may be the key to providing a meaningful bridge between multiple, interleaved and interdependent spaces.