Recognition of Simple Gestures Using a PIR Sensor Array

Wojtczuk, P., Armitage, A., Binnie, D., Chamberlain, T. (2012). Recognition of Simple Gestures Using a PIR Sensor Array. Sensors & Transducers Journal, 14, (1), 83-94.


ISBN:
ISSN: 1726-5479

Abstract

We present an approach that is intended for simple gesture control using a relatively inexpensive pyroelectric array detector. The detector is manufactured using standard wafer processing techniques. It consists of a 16 element passive infrared sensor array that responds to changing infrared signals, such as are generated by a hand moving at a distance of some tens of centimetres in front of the array. There is quite a large variation in the responsivity of the pixels within the array, but despite that it is relatively easy to use differential signals from the array or to apply a simplified version of an image processing algorithm to track movement in front of the detector. We have developed a prototype system that can recognise hand movements in different directions in front of the detector. This has allowed us to develop a demonstrator system that can be used to control, for instance, a PowerPoint presentation by gesture.
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Authors

Alistair Armitage
Senior Lecturer
a.armitage@napier.ac.uk
+44 131 455 2784

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