MULTIMEDIA '03 Proceedings of the eleventh ACM international conference on Multimedia
A new method to segment playfield and its applications in match analysis in sports video
Proceedings of the 12th annual ACM international conference on Multimedia
Determining Radius and Position of a Sphere from a Single Catadioptric Image
Journal of Intelligent and Robotic Systems
Playfield and ball detection in soccer video
ISVC'07 Proceedings of the 3rd international conference on Advances in visual computing - Volume Part II
Generic architecture for event detection in broadcast sports video
Proceedings of the 3rd international workshop on Automated information extraction in media production
A ball tracking system for offline tennis videos
VIS'08 Proceedings of the 1st WSEAS international conference on Visualization, imaging and simulation
Self-calibration based 3d information extraction and application in broadcast soccer video
ACCV'06 Proceedings of the 7th Asian conference on Computer Vision - Volume Part II
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Despite a lot of research efforts in sports video analysis, soccer video indexing remains a challenging task due to the lack of structure in a soccer game that could help in structure analysis. In particular, little work was done in detecting and tracking the ball whose trajectory could play a crucial role for detecting key events. We propose a novel framework for accurately detecting the ball for broadcast soccer video. Our framework combines both direct and indirect insights to identify the ball rather than conventional simple template matching methods. It has three key components. First we infer the ball size range from the player size. Next non-ball objects are removed to reduce the possible ball candidates. Last but not least, a Kalman filer-based procedure mines candidate trajectories in candidate feature images. Then, a procedure selects the reliable ball trajectories from them. The experimental results on two 1000-frame sequences confirm that the proposed framework is very effective and obtain a better result than existing methods.