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This paper discusses the use of eye contact sensing for focus selection operations in remote controlled media appliances. Focus selection with remote controls tends to be cumbersome as selection buttons place the remote in a device-specific modality. We addressed this issue with the design of Media EyePliances, home theatre appliances augmented with a digital eye contact sensor. An appliance is selected as the focus of remote commands by looking at its sensor. A central server subsequently routes all commands provided by remote, keyboard or voice input to the focus EyePliance. We discuss a calibration-free digital eye contact sensing technique that allows Media EyePliances to determine the user's point of gaze.
Vertegaal et al. (Sat,) studied this question.