Feature extraction using wavelet scattering transform coefficients for EMG pattern classification

Ahmad A. Al-Taee, Rami N. Khushaba, Tanveer Zia, Adel Al-Jumaily

Research output: Book chapter/Published conference paperConference paperpeer-review


The Electromyogram (EMG) signal collected from the human muscles has been utilised for a long time to aid in diagnosing several medical conditions and for the control of external devices, including powered exoskeletons and prosthetic devices. However, there are still many challenges in analysing this signal to translate the findings into clinical and engineering applications. One of the significant challenges is the knowledge extraction part, as represented by the feature extraction stage, which is considered a vital factor in attaining the ultimate performance in EMG-driven systems. Wavelet transforms analysis is one of the several methods utilised for feature extraction with biomedical signals in the time-frequency domain (TFD). Wavelet analysis-based feature extraction methods can be primarily categorised into three categories: wavelet transform (WT), wavelet packet transform (WPT), and the recently proposed deep wavelet scattering transform (WST). While many researchers utilised the first two methods to extract features from the EMG and other biomedical signals, the WST has not been appropriately investigated for feature extraction with EMG pattern recognition. This paper examines the potential benefits associated with the use of deep WST as a feature extraction method for the EMG signal and compares it with other wavelet methods. We used three well-known different EMG datasets collected with laboratory and wearable armbands hardware to provide a comprehensive performance evaluation under different settings. The new method demonstrates significant improvements in the myoelectric pattern recognition performance compared to WT and WPT, with accuracy reaching up to 96%.

Original languageEnglish
Title of host publicationAI 2021
Subtitle of host publicationAdvances in Artificial Intelligence - 34th Australasian Joint Conference, AI 2021, Proceedings
EditorsGuodong Long, Xinghuo Yu, Sen Wang
PublisherSpringer Science and Business Media Deutschland GmbH
Number of pages9
ISBN (Print)9783030975456
Publication statusPublished - 2022
Event34th Australasian Joint Conference on Artificial Intelligence, AI 2021 - Virtual, Online
Duration: 02 Feb 202204 Feb 2022

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume13151 LNAI
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349


Conference34th Australasian Joint Conference on Artificial Intelligence, AI 2021
CityVirtual, Online


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