Information Services International-Dentsu (President, Setsuo Kamai, Tokyo), an information and communication service company of the University of Tokyo and the Dentsu Group, has developed a new system that converts physical movements such as running forms into 3D data using a simpler mechanism and analyzes them. Did.We exhibited for reference at the "Sports Expo Tokyo 2015" held at the Komazawa Olympic Park in Setagaya-ku, Tokyo, and analyzed running forms and provided guidance by experts to general visitors.
According to Information Services International-Dentsu, the new system converts body movements into 3D data and analyzes it in real time as a person passes through an area where multiple sensors are installed.By adopting a sensor made by Microsoft Corporation in the United States, we succeeded in converting operation information into 3D with a simple device configuration without attaching markers to the human body.
Furthermore, the actual size value is estimated from the acquired 3D data, and the error for each elapsed time is calculated to determine the height, physique, stride length, pitch, center of gravity movement, and footsteps of the subject.The basic technology was handled by the University of Tokyo's Calendar Laboratory, and the data verification was performed by the Open Innovation Lab of Information Services International-Dentsu.
The sports motion analysis system using 3D data is realized by technologies such as motion capture, and is mainly used for the purpose of improving the technology of top athletes.However, many of them had to wear a large number of markers on the human body, and it took time to analyze the data, so the usage environment and applications were limited.
The new system was developed as the first step for widespread use such as exercise form guidance in physical education classes and rehabilitation support in hospitals.In the future, movement information of many people will be accumulated as sports big data, and it will be possible to use it for more advanced purposes such as predicting future body shape and illness from the tendency of walking.
Professor Jun Rekimoto of the University of Tokyo graduate school said, "With the evolution of technology, training methods that could only be used in special environments may become available to anyone anywhere. This new system is a pioneer. I want to do it. "
* Motion capture A technology that attaches a marker to a human, processes the movement of the marker, and reproduces the movement of the character with CG.