| Project/Area Number |
23500232
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Perception information processing/Intelligent robotics
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| Research Institution | Ritsumeikan University |
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Principal Investigator |
XU Gang 立命館大学, 情報理工学部, 教授 (90226374)
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| Co-Investigator(Kenkyū-buntansha) |
ISAKA Tadao 立命館大学, スポーツ健康科学部, 教授 (30247811)
YOSHIOKA Shinsuke 東京大学, 総合文化研究科, 准教授 (20512312)
FUKAI Hironobu 東京理科大学, 理工学部, 助教 (50571585)
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| Co-Investigator(Renkei-kenkyūsha) |
KUNIEDA Yoshitoshi 立命館大学, 情報システム学科, 教授 (90153311)
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2013: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2012: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2011: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
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| Keywords | 球技の3次元運動解析 / 同期多カメラによる実時間3次元計測 / 並列分散処理 / 背景差分法 / 視体積交差法 / 選手の背番号認識 / 球体の追跡 / カメラゲインの自動制御 |
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| Research Abstract |
(1)16 Cameras of 1.3 mega pixels were connected by the Gigabit Ethernet and a special electronic system was built to synchronize the 16 cameras. Data from the 16 note PC, each connected to one camera,were sent to the central server PC by MPI. (2)The intrinsic parameters of each camera were calibrated in advance and the extrinsic camera parameters were calibrated by locating in the images the markers whose coordinates in the field are known. As a result, 3D reconstruction of high accuracy is made possible. (3)The next step is to separate the pixels of players and referees from those pixels of the static background. (4)The pixels of players and referees are sent to the server PC and the voxels occupied by players and referees are extracted by space carving.These voxels are then projected onto the bird view image,where the players and referees are separated from each other.All is done at 30 frames per second.
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