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MCAM
2007
Springer

A Three-Level Scheme for Real-Time Ball Tracking

9 years 4 months ago
A Three-Level Scheme for Real-Time Ball Tracking
A three-level method is proposed to achieve robust and real-time ball tracking in soccer videos. It includes object-, intra-trajectory-, and intertrajectory-level processing. Due to much noise and frequent occlusion, it’s difficult to get the solely ball in one frame. Thus, in object level, multiple objects instead of a single one are detected and taken as ball candidates with shape and color features. Then at intra-trajectory level, each ball candidate is tracked by a Kalman filter in successive frames, which results in lots of initial trajectories in a video segment. These trajectories are thereafter scored and filtered according to their length and relationship in a time-line model. With these trajectories, we construct a distance graph, in which a node represents a trajectory, and an edge means distance between two trajectories. We use the Dijkstra algorithm to get the optimal path in the graph at the inter-trajectory level. To smooth the trajectory, we finally apply cubic spline...
Xiaofeng Tong, Tao Wang, Wenlong Li, Yimin Zhang,
Added 08 Jun 2010
Updated 08 Jun 2010
Type Conference
Year 2007
Where MCAM
Authors Xiaofeng Tong, Tao Wang, Wenlong Li, Yimin Zhang, Bo Yang, Fei Wang, Lifeng Sun, Shiqiang Yang
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