@inproceedings{d9d37e5c07824b9a925f3a54968222f3,
title = "Self-calibration based 3D information extraction and application in broadcast soccer video",
abstract = "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.",
author = "Yang Liu and Dawei Liang and Qingming Huang and Wen Gao",
year = "2006",
doi = "10.1007/11612704\_85",
language = "英语",
isbn = "3540312447",
series = "Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)",
publisher = "Springer Verlag",
pages = "852--861",
booktitle = "Computer Vision - ACCV 2006 - 7th Asian Conference on Computer Vision, Proceedings",
address = "德国",
note = "7th Asian Conference on Computer Vision, ACCV 2006 ; Conference date: 13-01-2006 Through 16-01-2006",
}