Image quantization using reaction-diffusion equations
SIAM Journal on Applied Mathematics
A Flexible New Technique for Camera Calibration
IEEE Transactions on Pattern Analysis and Machine Intelligence
Multiple view geometry in computer visiond
Multiple view geometry in computer visiond
Machine Vision and Applications
Self-Calibration of Rotating and Zooming Cameras
International Journal of Computer Vision
Autocalibration from Planar Scenes
ECCV '98 Proceedings of the 5th European Conference on Computer Vision-Volume I - Volume I
Automatic Camera Calibration for Image Sequences of a Football Match
ICAPR '01 Proceedings of the Second International Conference on Advances in Pattern Recognition
Linear Pose Estimation from Points or Lines
IEEE Transactions on Pattern Analysis and Machine Intelligence
Determining 3D Structure and Motion of Man-made Objects from Image Corners
SSIAI '02 Proceedings of the Fifth IEEE Southwest Symposium on Image Analysis and Interpretation
The Effects of Translational Misalignment when Self-Calibrating Rotating and Zooming Cameras
IEEE Transactions on Pattern Analysis and Machine Intelligence
Calibrating pan-tilt cameras in wide-area surveillance networks
ICCV '03 Proceedings of the Ninth IEEE International Conference on Computer Vision - Volume 2
A new method of camera pose estimation using 2D-3D corner correspondence
Pattern Recognition Letters
Acquiring Multi-Scale Images by Pan-Tilt-Zoom Control and Automatic Multi-Camera Calibration
WACV-MOTION '05 Proceedings of the Seventh IEEE Workshops on Application of Computer Vision (WACV/MOTION'05) - Volume 1 - Volume 01
An LMI Approach for Reliable PTZ Camera Self-Calibration
AVSS '06 Proceedings of the IEEE International Conference on Video and Signal Based Surveillance
ISM '06 Proceedings of the Eighth IEEE International Symposium on Multimedia
An Algebraic Approach to Lens Distortion by Line Rectification
Journal of Mathematical Imaging and Vision
Accurate Depth Dependent Lens Distortion Models: An Application to Planar View Scenarios
Journal of Mathematical Imaging and Vision
Online calibration of two zoom-pan-tilt units for planar dynamic events
DAGM'06 Proceedings of the 28th conference on Pattern Recognition
Tracking soccer ball in TV broadcast video
ICIAP'05 Proceedings of the 13th international conference on Image Analysis and Processing
Morphological thick line center detection
ICIAR'10 Proceedings of the 7th international conference on Image Analysis and Recognition - Volume Part I
Automatic line mark recognition and its application in camera calibration in soccer video
ICME '11 Proceedings of the 2011 IEEE International Conference on Multimedia and Expo
Active camera calibration using pan, tilt and roll
IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics
Automatic soccer video analysis and summarization
IEEE Transactions on Image Processing
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The main goal of this paper is the design of a novel and robust methodology for calibrating cameras from a single image in sport scenarios, such as a soccer field, or a basketball or tennis court. In these sport scenarios, the only references we use to calibrate the camera are the lines and circles delimiting the different regions. The first problem we address is the extraction of image primitives, including the challenging problems of shaded regions and lens distortion. From these primitives, we automatically recognise the location of the sport court in the scene by estimating the homography which matches the actual court with its projection onto the image. This is achieved even when only a few primitives are available. Finally, from this homography, we recover the camera calibration parameters. In particular, we estimate the focal length as well as the position and orientation in the 3D space. We present some experiments on models and real courts which illustrate the accuracy of the proposed methodology.