Analyzing Movements of Tennis Players by Dynamic Image Processing

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  • Yazaki Shunpei
    Department of Information Science, School of Science and Technology, Meijo University
  • Yamamoto Osami
    Department of Information Engineering, Faculty of Science and Technology, Meijo University

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  • 動画像処理によるテニス選手の運動解析
  • ドウガゾウ ショリ ニ ヨル テニス センシュ ノ ウンドウ カイセキ

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Abstract

Recently, we can easily obtain a fast computer and a digital video camera as their prices go down. In this paper, we describe a method and a system for analyzing performance of tennis players of a given singles tennis game. We assume that a movie of the game has been shot by a digital video camera which is fixed at a place such that the camera could film whole area of the tennis court and the two players, and that we have the sequence of the images in the computer. Using the positions of the players and the ball detected by techniques of image processing and partially by human assistance, we analyzed the game by defining an evaluation function. We made a prototype of a tennis-player-evaluation system by implementing the method. The system appropriately evaluated performances of players of some sample tennis games, although the evaluation function cannot analyze the player's tactics enough.

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