Instruction Display for Learning Taijiquan Motions

This paper describes an instruction display for learning Taijiquan (Tai Chi Chuan), a Chinese physical exercise, which is practiced chiefly in China and also in other countries of the world. Its practice is believed to promote and keep one´s health but most learners may have difficulties in accurately practicing it because of the complexity of Taijiquan motions. The instruction display helps the learners to understand and practice the motions simultaneously showing trajectories to be traced by their body segments, and actual positions of the body segments measured by tracking systems and sensors mounted on them. The instruction display also provides functionality that shows degrees of similarity between performed motions and expert´s one as index value of learner´s skill level.