Abstract
Research in human-computer interaction (HCI) explores the application of sensing to enhance interaction. The motivation of this work is varied. Some researchers seek to either expand the array of desktop input options or build completely new computing form factors such as mobile devices that know where they are pointed and intelligent environments that are aware of their inhabitants. Other researchers are interested in using sensors to make our machines behave more like we do, or alternatively to make them complement human abilities. Entertainment, surveillance, safety, productivity, mobile computing, and affective computing are all active areas in which researchers are applying sensors in interesting ways.
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