An Algorithm of Shot Classification in Basketball Video

Shot classification is helpful for video analysis, in this paper, an algorithm is proposed. First, key frames are extracted in equal interval in a shot; then for a frame, dominant colors are obtained by hue histogram, furthermore, the variance of dominant colors and ratio of clustered colors are computed, by which the corresponding frame could be classified into playing or non-playing frame; finally, a shot could be classified by the percentage by which key frames are playing frames. Experimental results confirm the efficiency of proposed algorithm