No Bells, Just Whistles: Sports Field Registration by Leveraging Geometric Properties

Broadcast sports field registration is traditionally addressed as a homography estimation task, mapping the visible image area to a planar field model, predominantly focusing on the main camera shot. Addressing the shortcomings of previous approaches, we propose a novel calibration pipeline enabling...

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Bibliographic Details
Main Authors: Gutierrez-Perez, Marc, Agudo, Antonio
Format: Conference Proceeding
Language:English
Subjects:
3D Soccer
Broadcast
Calibration
Camera Calibration
Cameras
Estimation
Focusing
Football
Geometry
Homography
Multi-view
Pipelines
Soccer
SoccerNet
Solid modeling
Sports
Sports Field Registration
Three-dimensional displays
WorldCup
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Description
Summary:Broadcast sports field registration is traditionally addressed as a homography estimation task, mapping the visible image area to a planar field model, predominantly focusing on the main camera shot. Addressing the shortcomings of previous approaches, we propose a novel calibration pipeline enabling camera calibration using a 3D soccer field model and extending the process to assess the multiple-view nature of broadcast videos. Our approach begins with a keypoint generation pipeline derived from SoccerNet dataset annotations, leveraging the geometric properties of the court. Subsequently, we execute classical camera calibration through DLT algorithm in a minimalist fashion, without further refinement. Through extensive experimentation on real-world soccer broadcast datasets such as SoccerNet-Calibration, WorldCup 2014 and TS-WorldCup, our method demonstrates superior performance in both multiple- and single-view 3D camera calibration while maintaining competitive results in homography estimation compared to state-of-the-art techniques. 1
ISSN:2160-7516
DOI:10.1109/CVPRW63382.2024.00337