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The i-th initial motion datum corresponding to the c-th human activity, where c belongs to the set of human activities, for example, baseball batting, soccer kicking, golf swing, and so on, include initial 3D position, 3D linear velocity, and 3D angular velocity, which are defined by the following equations, respectively.
The ball motion analysis process in our previous work was applied to the i-th image sequence in order to compute initial 3D position, 3D linear velocity, and 3D angular velocity, with a single high-speed camera. |