Feedback of Flying Disc Throw with Kinect: Improved Experiment

Abstract

This paper shows an improved experiment result of a feedback system for flying disc learners with use of Kinect device. Compared with conventional 3-D motion capture systems, Kinect has advantages of cost, easy system development and operation. Our formerly proposed system in Yamaoka (2013) captures learners’ specific 20 points in 3-D manner, judges their postures and motions based on criteria defined by a domain expert, and displays feedback messages to improve their motions. An improved experiment increases the time of flying disc throw in pre-test (10 to 30) and test (5 to 10). This change allows testees to be accustomed with disc throwing activity in experimental environment, and also to master given feedback message. As a result, relatively novice testees of the target group showed significant improvement of their throwing motions.