Phase-Based Grasp Classification for Prosthetic Hand Control Using sEMG

Pattern recognition using surface Electromyography (sEMG) applied on prosthesis control has attracted much attention in these years. In most of the existing methods, the sEMG signal during the firmly grasped period is used for grasp classification because good performance can be achieved due to its...

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Main Authors: Shuo Wang, Jingjing Zheng, Bin Zheng, Xianta Jiang
Format: Article
Language:English
Published: MDPI AG 2022-01-01
Series:Biosensors
Subjects:
Online Access:https://www.mdpi.com/2079-6374/12/2/57
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author Shuo Wang
Jingjing Zheng
Bin Zheng
Xianta Jiang
author_facet Shuo Wang
Jingjing Zheng
Bin Zheng
Xianta Jiang
author_sort Shuo Wang
collection DOAJ
description Pattern recognition using surface Electromyography (sEMG) applied on prosthesis control has attracted much attention in these years. In most of the existing methods, the sEMG signal during the firmly grasped period is used for grasp classification because good performance can be achieved due to its relatively stable signal. However, using the only the firmly grasped period may cause a delay to control the prosthetic hand gestures. Regarding this issue, we explored how grasp classification accuracy changes during the reaching and grasping process, and identified the period that can leverage the grasp classification accuracy and the earlier grasp detection. We found that the grasp classification accuracy increased along the hand gradually grasping the object till firmly grasped, and there is a <i>sweet period</i> before firmly grasped period, which could be suitable for early grasp classification with reduced delay. On top of this, we also explored corresponding training strategies for better grasp classification in real-time applications.
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spelling doaj.art-5e52d9ccc0ad466b8f90b0c1c5e73f612023-11-23T19:00:32ZengMDPI AGBiosensors2079-63742022-01-011225710.3390/bios12020057Phase-Based Grasp Classification for Prosthetic Hand Control Using sEMGShuo Wang0Jingjing Zheng1Bin Zheng2Xianta Jiang3Department of Computer Science, Memorial University of Newfoundland, St. John’s, NL A1C 5S7, CanadaDepartment of Computer Science, Memorial University of Newfoundland, St. John’s, NL A1C 5S7, CanadaDepartment of Surgery, University of Alberta, Edmonton, AB T6G 2R3, CanadaDepartment of Computer Science, Memorial University of Newfoundland, St. John’s, NL A1C 5S7, CanadaPattern recognition using surface Electromyography (sEMG) applied on prosthesis control has attracted much attention in these years. In most of the existing methods, the sEMG signal during the firmly grasped period is used for grasp classification because good performance can be achieved due to its relatively stable signal. However, using the only the firmly grasped period may cause a delay to control the prosthetic hand gestures. Regarding this issue, we explored how grasp classification accuracy changes during the reaching and grasping process, and identified the period that can leverage the grasp classification accuracy and the earlier grasp detection. We found that the grasp classification accuracy increased along the hand gradually grasping the object till firmly grasped, and there is a <i>sweet period</i> before firmly grasped period, which could be suitable for early grasp classification with reduced delay. On top of this, we also explored corresponding training strategies for better grasp classification in real-time applications.https://www.mdpi.com/2079-6374/12/2/57myoelectric prosthesissEMGgrasp phases analysisgrasp classificationmachine learning
spellingShingle Shuo Wang
Jingjing Zheng
Bin Zheng
Xianta Jiang
Phase-Based Grasp Classification for Prosthetic Hand Control Using sEMG
Biosensors
myoelectric prosthesis
sEMG
grasp phases analysis
grasp classification
machine learning
title Phase-Based Grasp Classification for Prosthetic Hand Control Using sEMG
title_full Phase-Based Grasp Classification for Prosthetic Hand Control Using sEMG
title_fullStr Phase-Based Grasp Classification for Prosthetic Hand Control Using sEMG
title_full_unstemmed Phase-Based Grasp Classification for Prosthetic Hand Control Using sEMG
title_short Phase-Based Grasp Classification for Prosthetic Hand Control Using sEMG
title_sort phase based grasp classification for prosthetic hand control using semg
topic myoelectric prosthesis
sEMG
grasp phases analysis
grasp classification
machine learning
url https://www.mdpi.com/2079-6374/12/2/57
work_keys_str_mv AT shuowang phasebasedgraspclassificationforprosthetichandcontrolusingsemg
AT jingjingzheng phasebasedgraspclassificationforprosthetichandcontrolusingsemg
AT binzheng phasebasedgraspclassificationforprosthetichandcontrolusingsemg
AT xiantajiang phasebasedgraspclassificationforprosthetichandcontrolusingsemg