A spatial-frequency-temporal 3D convolutional neural network for motor imagery EEG signal classification

Motor imagery (MI) EEG signal classification is a critical issue for brain–computer interface (BCI) systems. In traditional MI EEG machine learning algorithms, feature extraction and classification often have different objective functions, thus resulting in information loss. To solve this problem, a...

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Vydané v:Signal, image and video processing Ročník 15; číslo 8; s. 1797 - 1804
Hlavní autori: Miao, Minmin, Hu, Wenjun, Zhang, Wenbin
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: London Springer London 01.11.2021
Springer Nature B.V
Predmet:
Accuracy
Algorithms
Artificial neural networks
Classification
Competition
Computer Imaging
Computer Science
Datasets
Electroencephalography
Feature extraction
Human-computer interface
Image classification
Image Processing and Computer Vision
Machine learning
Multimedia Information Systems
Original Paper
Pattern Recognition and Graphics
Signal classification
Signal,Image and Speech Processing
Three dimensional models
Vision
Spatial frequency temporal (SFT)
Electroencephalogram (EEG)
3D convolutional neural network (3D CNN)
Brain–computer interface (BCI)
ISSN:1863-1703, 1863-1711
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Popis
Shrnutí:Motor imagery (MI) EEG signal classification is a critical issue for brain–computer interface (BCI) systems. In traditional MI EEG machine learning algorithms, feature extraction and classification often have different objective functions, thus resulting in information loss. To solve this problem, a novel spatial-frequency-temporal (SFT) 3D CNN model is proposed. Specifically, the energies of EEG signals located in multiple local SFT ranges are extracted to obtain a novel 3D MI EEG feature representation, and a novel 3D CNN model is designed to simultaneously learn the complex MI EEG features in the entire SFT domains and carry out classification. An extensive experimental study is implemented on two public EEG datasets to evaluate the effectiveness of our method. For BCI Competition III Dataset IVa, the average accuracy rate of five subjects obtained by the proposed method reaches 86.6% and yields 4.1% improvement over the state-of-the-art filter band common spatial pattern (FBCSP) method. For BCI Competition III dataset IIIa, by achieving an average accuracy rate of 91.85%, the proposed method outperforms the state-of-the-art dictionary pair learning (DPL) method by 4.44%.
Bibliografia:ObjectType-Article-1
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ISSN:1863-1703
1863-1711
DOI:10.1007/s11760-021-01924-3