Analysis and Retargeting of Ball Sports Video

The quality achieved by simply scaling a sports video to the limited display resolution of a mobile device is of-ten insufficient. As a consequence, small details like the ball or lines on the playing field become unrecognizable. In this paper, we present a novel approach to analyzing court-based ball sports videos. We have developed new tech-niques to distinguish actual playing frames, to detect play-ers, and to track the ball. This information is used for ad-vanced video retargeting, which emphasizes essential con-tent in the adapted videos. We evaluate the precision and re-call achieved in the analysis and measure the computational time taken. In addition, we compare our new approach to other video retargeting techniques based on scaling, crop-ping, and seam carving. 1