Hand Gesture Classification Based on Nonaudible Sound Using Convolutional Neural Network

Figure 5

Used gestures. (a) Do nothing. (b) Move from left to right. (c) Move from top to bottom. (d) Circle drawing. (e) Block the microphone. (f) Move from right to left. (g) Move from bottom to top. (h) Triangle drawing.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)