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근전도 기반의 Spider Chart와 딥러닝을 활용한 일상생활 잡기 손동작 분류
이성문,피승훈,한승호,조용운,오도창,Lee, Seong Mun,Pi, Sheung Hoon,Han, Seung Ho,Jo, Yong Un,Oh, Do Chang 대한의용생체공학회 2022 의공학회지 Vol.43 No.5
In this paper, we propose a pre-processing method that converts to Spider Chart image data for classification of gripping movement using EMG (electromyography) sensors and Convolution Neural Networks (CNN) deep learning. First, raw data for six hand gestures are extracted from five test subjects using an 8-channel armband and converted into Spider Chart data of octagonal shapes, which are divided into several sliding windows and are learned. In classifying six hand gestures, the classification performance is compared with the proposed pre-processing method and the existing methods. Deep learning was performed on the dataset by dividing 70% of the total into training, 15% as testing, and 15% as validation. For system performance evaluation, five cross-validations were applied by dividing 80% of the entire dataset by training and 20% by testing. The proposed method generates 97% and 94.54% in cross-validation and general tests, respectively, using the Spider Chart preprocessing, which was better results than the conventional methods.
음성인식과 화자검증을 통해 편리성과 보안성이 향상된 EMG 기반 능동의수 연구
김선홍(Seon-Hong Kim),김기승(Ki-Seung Kim),조용운(Yong-Un Jo),오도창(Do-Chang Oh) 대한전자공학회 2021 대한전자공학회 학술대회 Vol.2021 No.6
In this study, speaker verification and speech recognition technology are combined with an electronic prosthesis that performs basic movements based on EMG, and a new operation method is used to increase convenience and security. The speaker"s speech was trained using speech recognition and CNN on 4 hand gestures obtained from 10 subjects, resulting in an average of 97% accuracy for real-time speech data.