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This paper deals with the analysis of broadcast soccer video. To recognize interesting events such as a goal, estimation of ball movements is necessary. It is, however, sometimes difficult to detect a ball by a simple color and shape-based method when it overlaps with players and lines. We therefore develop a method of estimating a ball route during such overlaps by considering spatio-temporal relationships...
In this paper, a three-layer event detection scheme is proposed and applied to shoot and card event detection in soccer videos. At the lowest layer low-level features including color texture, edge and motion are considered. At the middle layer a concept of semantic unit is presented to bridge the semantic gap. The semantic unit is a sequence of consecutive frames tagged a special semantic cue. At...
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