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dc.contributor.authorCastro M.C.F.
dc.contributor.authorArjunan S.P.
dc.contributor.authorKumar D.K.
dc.date.accessioned2019-08-19T23:45:15Z
dc.date.available2019-08-19T23:45:15Z
dc.date.issued2015
dc.identifier.citationCASTRO, MARIA CLAUDIA F; ARJUNAN, SRIDHAR P; KUMAR, DINESH K. Selection of suitable hand gestures for reliable myoelectric human computer interface. Biomedical Engineering Online (Online), v. 14, n. 1, p. 30, 2015.
dc.identifier.issn1475-925X
dc.identifier.urihttps://repositorio.fei.edu.br/handle/FEI/1161
dc.description.abstract© Castro et al.Background: Myoelectric controlled prosthetic hand requires machine based identification of hand gestures using surface electromyogram (sEMG) recorded from the forearm muscles. This study has observed that a sub-set of the hand gestures have to be selected for an accurate automated hand gesture recognition, and reports a method to select these gestures to maximize the sensitivity and specificity. Methods: Experiments were conducted where sEMG was recorded from the muscles of the forearm while subjects performed hand gestures and then was classified off-line. The performances of ten gestures were ranked using the proposed Positive-Negative Performance Measurement Index (PNM), generated by a series of confusion matrices. Results: When using all the ten gestures, the sensitivity and specificity was 80.0% and 97.8%. After ranking the gestures using the PNM, six gestures were selected and these gave sensitivity and specificity greater than 95% (96.5% and 99.3%); Hand open, Hand close, Little finger flexion, Ring finger flexion, Middle finger flexion and Thumb flexion. Conclusion: This work has shown that reliable myoelectric based human computer interface systems require careful selection of the gestures that have to be recognized and without such selection, the reliability is poor.
dc.relation.ispartofBioMedical Engineering Online
dc.rightsAcesso Aberto
dc.titleSelection of suitable hand gestures for reliable myoelectric human computer interface
dc.typeArtigo


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