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Automatic Camera Calibration for Image Sequences of a Football Match

机译:足球比赛图像序列的自动摄像机校准

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In the broadcast of sports events one can commonly see adds or logos that are not actually there - instead, they are inserted into the image, with the appropriate perspective representation, by means of specialized computer graphics hardware. Such techniques involve camera calibration and the tracking of objects in the scene. This article introduces an automatic camera calibration algorithm for a smooth sequence of images of a football (soccer) match taken in the penalty area near one of the goals. The algorithm takes special steps for the first scene in the sequence and then uses coherence to efficiently update camera parameters for the remaining images. The algorithm is capable of treating in real-time a sequence of images obtained from a TV broadcast, without requiring any specialized hardware.
机译:在运动事件的广播中,可以常见的是在实际上没有的添加或徽标 - 而是通过专门的计算机图形硬件插入图像中,使用适当的透视表示。这种技术涉及摄像机校准和场景中对象的跟踪。本文介绍了一种自动摄像机校准算法,用于在其中一个目标之一的刑罚区域中的足球(足球)匹配的平滑序列。该算法在序列中为第一个场景采取特殊步骤,然后使用一致性以有效地更新剩余图像的相机参数。该算法能够实时处理从电视广播获得的一系列图像,而不需要任何专用硬件。

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