MOTION AND GESTURE RECOGNITION BY A PASSIVE SINGLE PIXEL THERMAL SENSOR SYSTEM

摘要

A system and a method for recognizing a gesture made by a warm object are provided. The system includes a thermal sensor configured to generate a low frequency or a direct current signal after receiving thermal energy. A spatially modulating optical member is disposed between the thermal sensor and the warm object. The optical member is configured to modulate the thermal energy received by the thermal sensor as a function of an orientation of the warm object with respect to the thermal sensor. An electronic unit in communications with the thermal sensor includes a memory and a processor. The processor is set by the memory to detect a change in the thermal sensor signal and recognize characteristics of the thermal sensor signal.