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	Self-calibration based 3d information extraction and application in broadcast soccer video
	Liu, Y; Liang, DW; Huang, QM; Gao, W
刊名	Computer vision - accv 2006, pt ii
	2006
卷号	3852页码:852-861
ISSN号	0302-9743
通讯作者	Liu, y(yliu@jdl.ac.cn)
英文摘要	This paper proposes a new method based on self-calibration to estimate the ball's 3d position in broadcast soccer video. according to the physical limitation, the ball's 3d position is estimated through the camera position and the ball's virtual shadow, which is the point of intersection between the playfield and the line through the camera's optical center and the ball. first, the virtual shadow is computed by the homography between playfield and image plane. for the image having enough corresponding points, the map is determined directly; for those images not having enough these points, their homographies are estimated through global motion estimation. then, based on self-calibrating for rotating and zooming camera, and the homography, the camera's position in the playfield is estimated. experiments show that the proposed method can extract ball's 3d position information without referring to other object with assuming height and obtain promising results.
WOS关键词	TRACKING PLAYERS ; BALL ; GAMES
WOS研究方向	Computer Science
WOS类目	Computer Science, Artificial Intelligence ; Computer Science, Theory & Methods
语种	英语
出版者	SPRINGER-VERLAG BERLIN
WOS记录号	WOS:000235773200085
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2379448
专题	中国科学院大学
通讯作者	Liu, Y
作者单位	1.Harbin Inst Technol, Sch Comp Sci & Technol, Harbin 150001, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Liu, Y,Liang, DW,Huang, QM,et al. Self-calibration based 3d information extraction and application in broadcast soccer video[J]. Computer vision - accv 2006, pt ii,2006,3852:852-861.
APA	Liu, Y,Liang, DW,Huang, QM,&Gao, W.(2006).Self-calibration based 3d information extraction and application in broadcast soccer video.Computer vision - accv 2006, pt ii,3852,852-861.
MLA	Liu, Y,et al."Self-calibration based 3d information extraction and application in broadcast soccer video".Computer vision - accv 2006, pt ii 3852(2006):852-861.

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