2020/04/21 by Shun Ishii, Ishii, Shun, Kizito Nkurikiyeyezu +5
Computer Science · Medicine · #Algorithm #Artificial intelligence #Computer science #Computer vision #Context-Aware Activity Recognition Systems #FOS: Computer and information sciences #Human-Computer Interaction (cs.HC) #Inertial measurement unit #Pattern recognition (psychology) #Physical Activity and Health #Segmentation #cs.HC
paper · pdf · doi:10.48550/arxiv.2004.10026
arxiv created 2020/04/21 · openalex publication_date 2020/04/21 · arxiv updated 2020/04/22 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Even though it is well known that physical exercises have numerous emotional and physical health benefits, maintaining a regular exercise routine is quite challenging. Fortunately, there exist technologies that promote physical activity. Nonetheless, almost all of these technologies only target a narrow set of physical activities (e.g., either running or walking but not both) and are only applicable either in indoor or in outdoor environments, but do not work well in both environments. This paper introduces a real-time segmentation and classification algorithm that recognizes physical exercises and that works well in both indoor and outdoor environments. The proposed algorithm achieves a 95% classification accuracy for five indoor and outdoor exercises, including segmentation error. This accuracy is similar or better than previous works that handled only indoor workouts and those use a vision-based approach. Moreover, while comparable machine learning-based approaches need a lot of training data, the proposed correlation-based method needs one sample of motion data of each target exercises.