顔方向追跡に基づいた球技放映カメラのディジタルパン制御 : バスケットボールを例として

概要

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We propose an automatic camera pan control method for broadcasting ball games by tracking the direction of the audience's faces. It provides more robustness against occlusions than previous approaches. Our method consists of two sensors (face and court) and an integrating component. The face sensor focuses on the point of audience's interest in fast-moving scenes by tracking face direction. The court sensor estimates the center of play in slow-moving scenes by detecting moving objects. After integrating these points, we get a broadcasting video using digital camerawork. Objective and subjective evaluation showed that our approach was better than previous ones in respect of stable tracking and ease of watching. We conclude that our method is as effective as the optimum camerawork.
2004-09-01