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Surface EMG classification using moving approximate entropy and fuzzy logic for prosthesis control

Surface EMG classification using moving approximate entropy and fuzzy logic for prosthesis control
Surface EMG classification using moving approximate entropy and fuzzy logic for prosthesis control
Electromyographic control systems based on pattern recognition have become an established technique in upper limb prosthetic control application. This paper describes a use of fuzzy logic to discriminate different hand grip postures by processing the surface EMG from wrist muscles. A moving data window of two hundred values is applied to the SEMG data and a new method called moving approximate entropy is used to extract information from the signals. The analyses show differences at three states of contraction (start, middle and end) where significant dips can be observed at the start and end of a muscle contraction. Mean absolute value (MAV) and kurtosis are also used in the extraction process to increase the performance of the system. The extracted features are fed to a fuzzy logic system to be classified and select the output appropriately. The preliminary experimental result demonstrates the ability of the system to classify the features related to different grip postures.
978-1-55131-124-1
136-139
University of New Brunswick
Ahmad, Siti A.
acbeb287-5b41-4c24-be5e-c9032028a977
Chappell, Paul H.
2d2ec52b-e5d0-4c36-ac20-0a86589a880e
Ahmad, Siti A.
acbeb287-5b41-4c24-be5e-c9032028a977
Chappell, Paul H.
2d2ec52b-e5d0-4c36-ac20-0a86589a880e

Ahmad, Siti A. and Chappell, Paul H. (2008) Surface EMG classification using moving approximate entropy and fuzzy logic for prosthesis control. In MEC '08 Measuring Success in Upper Limb Prosthetics Symposium Proceedings. University of New Brunswick. pp. 136-139 .

Record type: Conference or Workshop Item (Paper)

Abstract

Electromyographic control systems based on pattern recognition have become an established technique in upper limb prosthetic control application. This paper describes a use of fuzzy logic to discriminate different hand grip postures by processing the surface EMG from wrist muscles. A moving data window of two hundred values is applied to the SEMG data and a new method called moving approximate entropy is used to extract information from the signals. The analyses show differences at three states of contraction (start, middle and end) where significant dips can be observed at the start and end of a muscle contraction. Mean absolute value (MAV) and kurtosis are also used in the extraction process to increase the performance of the system. The extracted features are fed to a fuzzy logic system to be classified and select the output appropriately. The preliminary experimental result demonstrates the ability of the system to classify the features related to different grip postures.

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More information

Published date: 2008
Venue - Dates: MyoElectric Controls/Powered Prosthetics Symposium: Measuring Success in Upper Limb Prosthetics, University of New Brunswick, Fredericton, Canada, 2008-08-13 - 2008-08-15
Organisations: EEE

Identifiers

Local EPrints ID: 266638
URI: http://eprints.soton.ac.uk/id/eprint/266638
ISBN: 978-1-55131-124-1
PURE UUID: 2d90e2a5-1cb6-4833-82fa-2ca743a2365b

Catalogue record

Date deposited: 09 Sep 2008 09:43
Last modified: 28 Nov 2023 18:05

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Contributors

Author: Siti A. Ahmad
Author: Paul H. Chappell

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