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Fig. 5 | EURASIP Journal on Wireless Communications and Networking

Fig. 5

From: Gesture recognition method based on a single-channel sEMG envelope signal

Fig. 5

The process of extraction of the valid activity segment. a The short-term energy distribution of raw sEMG signal. b Duration (T) of valid activity segment. c The average energy \( {\overline{E}}_k \) for five types of gestures. d The extraction of the valid activity segment for sEMG envelope signal. The legends first, second, third, fourth, and fifth represent the five kinds of gestures. Starting point represents the first sampling point in the valid activity segment. Ending point represents the last sampling point in the valid activity segment

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