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A passive infrared gesture recognition system

A device for a low-to-intermediate level of gesture recognition which uses a passive thermal-infrared (PIR) sensor array is described. The detection system which discriminates between a small number of simple dynamic gestures, such as ‘hand swiping’ in different directions and at varying velocities. The technology is low powered, in terms of energy consumption and computational power. The sensor enables a gesture sensing input, for mobile device application areas, where hands-free operation can be useful and where low-power consumption is essential.