With the rapid development of IT, various types of contents services have been released such as multiplayer game platform and posture analysis system in sports. Additionally, due to global pandemic, video-based learning service for dance, yoga or Pilates has been widely expanded.
However, the poor recognition ratio for the complex motions causes game manufacturers to make simple motion recognition-based games only. In term of video-based learning service, it is hard to know how accurately students are following the instructor’s movement.