Consideration of feature extraction based on center of gravity for Nihon Buyo dancer using motion capture system

Our research aims to use motion analysis to classify Nihon Buyo, traditional Japanese dance, according to style, school, and the dancer´s proficiency, and to construct a system having a high instructional impact on dancers at sites where Nihon Buyo is taught. We outline the motion-analysis system that we constructed and use this system to analyze a dancer´s physical motion using center-of-gravity data. We also describe changes arising in physical motion based on feature-extraction by age group and a dancer´s training.