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. 2021 Sep 15;15:711047. doi: 10.3389/fnbot.2021.711047

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Copyright © 2021 Li, Li, Zeng and Wei.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Real-time hand gesture recognition from a representative subject (H4). (A) The raw surface electromyography (sEMG) signals recorded from the left brachioradialis (BRA); (B) the Teager Kaiser energy (TKE) signals extracted from (A) with a threshold 0.001 mv; (C) the raw classification based on the SVM; (D) final classification based on the TKE and the three consecutive judgment algorithms.