Electric Field Sensing For Graphical Interfaces
IEEE Computer Graphics and Applications
A survey of advances in vision-based human motion capture and analysis
Computer Vision and Image Understanding - Special issue on modeling people: Vision-based understanding of a person's shape, appearance, movement, and behaviour
TileTrack: Capacitive human tracking using floor tiles
PERCOM '09 Proceedings of the 2009 IEEE International Conference on Pervasive Computing and Communications
Unobtrusive human height and posture recognition with a capacitive sensor
Journal of Ambient Intelligence and Smart Environments
Unobtrusive human height and posture recognition with a capacitive sensor
Journal of Ambient Intelligence and Smart Environments
Capacitive indoor positioning and contact sensing for activity recognition in smart homes
Journal of Ambient Intelligence and Smart Environments
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This paper presents a passive, simple, and affordable electric field based ranging method for capturing human position, leaning, and hand or leg movements. A test system transforms the physical input into a two-dimensional position in an indoor environment. The method and the designed test system can be used, for example, in gaming, virtual exhibition, and virtual reality applications. The proposed system measures the capacitances between a user, standing on a transmitting floor electrode, and four vertically aligned receiver wires placed at the corners of the tracking area. The system converts the measured capacitances to absolute distances, which in turn can be used to resolve the unambiguous position of the user. The design was verified in a 1.8 x 1.8 m-sized test space by using the structures of a virtual reality cave. The test system can track a human body with relative accuracy of less than 10.4 cm at an update rate of 19.5 Hz.