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APPARATUS AND A METHOD FOR MIXING THREE-DIMENSIONAL GRAPHIC IMAGE IN SPORTS VIDEO TO MAKE A VIEWER OF THE SPORTS VIDEO FEEL THAT THE GRAPHIC IMAGE REALLY EXISTS IN STADIUM
APPARATUS AND A METHOD FOR MIXING THREE-DIMENSIONAL GRAPHIC IMAGE IN SPORTS VIDEO TO MAKE A VIEWER OF THE SPORTS VIDEO FEEL THAT THE GRAPHIC IMAGE REALLY EXISTS IN STADIUM
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机译：用于在体育视频中混合三维图形图像的设备和方法，以使观看者感觉到体育图形中确实存在图形图像
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摘要
PURPOSE: An apparatus and a method for mixing 3D(three-Dimensional) graphic image in sports video are provided to make viewer of the sports video feel that the 3D graphic image really exists in a stadium by mixing a graphic image with the sports video at its desired location. CONSTITUTION: A corner point, used for searching cross information of line components, is calculated on a basis of model information of a standardized stadium. A graphic object is mixed with sports video by using information about the corner point. An affined transform and a perspective transform are calculated by utilizing the information about the corner point. A graphic image which is supposed to be mixed with the sports video is transformed by using information of the affined transform and the perspective transform. A plurality of corner points are detected continuously from a video frame. On a basis of information about a previous frame, locations of the corner points in a next frame are pre-estimated.
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