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• W3204255805 abstract "Coaches and athletes need to understand the kinematics and dynamics of karate kicks to improve the training process and results. The research was aimed at studying the automatic recognition of punches in karate using only linear acceleration sensors. Accelerometers were part of the Inertial Measurement Units (IMUs), which were attached to the left and right wrist of the athlete. To develop a model of punches, highly qualified athletes with 3-7 years of karate experience participated in the research. We analyzed the acceleration fields of various karate punches: Yun Tsuki, Mawashi Tsuki, Age of Tsuki, Uraken. A simpler approach to extracting features without calculating their statistical characteristics is proposed. To solve the classification problem, various architectures of convolutional neural networks are used: multilayer perceptron, 1- and 2-dimension Convolution Networks. Since the recognition of punches was carried out in the conditions of a shadow fight, in addition to the recognition of punches, another output parameter was introduced – movement without punches. Studies have shown a high level of punch recognition based on the developed models. The multi-class accuracy value is 0.96, and the average F1 value is 0.97 for five different punch classes. Thus, the proposed approach is more suitable for practical implementation in automatic learning systems." @default.
• W3204255805 created "2021-10-11" @default.
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• W3204255805 date "2021-01-01" @default.
• W3204255805 modified "2023-10-14" @default.
• W3204255805 title "Recognition Punches in Karate Using Acceleration Sensors and Convolution Neural Networks" @default.
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• W3204255805 doi "https://doi.org/10.1109/access.2021.3118038" @default.
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