Abstract
In this letter, we propose and implement a shadow approach for real-time hand gesture recognition using a light-dependent resistor array, which can detect analog signals from hand shadows. The main advantage of the shadow approach is real-time recognition. Instead of a three-dimensional (3D) hand gesture, the shadow approach detects two-dimensional hand shadows and then measures the intensity of the signal from each element of a sensor array to recognize the 3D gesture. The recognition accuracy was higher than 90 %.
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