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Accession number;07A0176777
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| Title;Measurement of 3D Ball Trajectory Using Motion Blur |
| Author;
TAKANOHASHI KENTA
(Advanced Inst. Sci. and Technol., Nara)
MANABE YOSHITSUGU
(Advanced Inst. Sci. and Technol., Nara)
YASUMURO YOSHIHIRO
(Advanced Inst. Sci. and Technol., Nara)
IMURA MASATAKA
(Advanced Inst. Sci. and Technol., Nara)
CHIHARA KUNIHIRO
(Advanced Inst. Sci. and Technol., Nara)
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Journal Title;IPSJ Transactions on Database
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Journal Code:Z0778A
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ISSN:0387-5806
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VOL.48;NO.SIG1(CVIM17);PAGE.35-47(2007)
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| Figure&Table&Reference;FIG.25, REF.10 |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;This paper proposes a new method of measuring a 3D trajectory of ball. Our proposed method does not need high-speed video cameras and synchronized video cameras to measure the 3D ball trajectory, and it enables to measure a continuous trajectory between shutter timings. Our approach is that a 2D ball trajectory appears on each image by slowing down shutter speed of camera, and the 3D ball trajectory can be computed using shape of silhouette method from intersection of inversion projected the images. The estimated 3D trajectory does not have time information. The time information is given according to a correspondence between 3D trajectory and the position of ball in images when video frames are switched. This paper describes details of our method and experimental results applied our method to table tennis and football. (author abst.) |
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