Abstract
For rising competition abilities, it is important to do feedback of player's characteristics in or after the game. In this study, We abstracted and resolved characteristic of movement excursion from beginners and experts. Because of feedback of movement excursion will be able to contribute to cradling of players. In the present analysis method, player's information on the position was gotten by estimation with eyes and using recorded videotape. But, these methods are not objective judge and take enormous time as it is unable to do feedback subjective information right after the game. Therefore, We carried out REAL-TIME DIFFERNCE IMAGE PROCESSING SYSTEM developed by Nishihara et al. With this trace analysis system, We estimated the position information of the actual coat of badminton players on the screen in real time. Game was arranged by separately the beginner and expert group of university students, and organized with 11 points match game. From these games, the data including time of rest period as interval of rally, work period as rally, distance of mobility and velocity of mobility were collected. In view of the analytical results in the games, it was clarified that, comparing the expert group with the beginner group, there was no difference in velocity of left-right mobility direction, but the former moved more rapidly in before-behind mobility direction than the latter. As a result of comparing between beginners' and experts' staying time at the court divided into 6×6 segments, the former stayed much longer at the left side in front of the court and the latter stayed longer at the both side in back of the court in significant. Beginners took rest period significantly longer than experts, however there was not difference during work period. Also, movement of excursion, when got and lost points, made players' weak-points obvious easily. Our study shows that this system is effective for improving competition abilities as players can get momently their characteristics of excursion after the game immediately.
