US 11,948,388 B2
Method and apparatus for user recognition using 2D EMG spectrogram image
Sung Bum Pan, Gwangju (KR); Jae Myung Kim, Gwangju (KR); and Gyu Ho Choi, Gwangju (KR)
Assigned to Industry-Academic Cooperation Foundation, Chosun University, Gwangju (KR)
Filed by Industry-Academic Cooperation Foundation, Chosun University, Gwangju (KR)
Filed on Jul. 22, 2021, as Appl. No. 17/382,665.
Claims priority of application No. 10-2020-0090896 (KR), filed on Jul. 22, 2020.
Prior Publication US 2022/0027617 A1, Jan. 27, 2022
Int. Cl. G06V 40/10 (2022.01)
CPC G06V 40/10 (2022.01) [G06F 2218/02 (2023.01); G06F 2218/12 (2023.01)] 8 Claims
OG exemplary drawing
 
1. A user recognition method using a two-dimensional (2D) electromyogram (EMG) spectrogram image, comprising:
(a) acquiring a one-dimensional EMG signal for a user;
(b) converting the acquired one-dimensional EMG signal to a 2D EMG spectrogram image including a temporal feature and a frequency feature; and
(c) recognizing the user based on the 2D EMG spectrogram,
wherein the operation (b) includes: dividing the one-dimensional EMG signal into repetitive cycles for one motion of the user; separating the divided one-dimensional EMG signal for each of at least one muscle used for one motion of the user; and combining the one-dimensional EMG signal separated for each of the at least one muscle in a time domain.