基于统计特征的镜头边缘侦测

SCENE CHANGE DETECTION BASED ON STATISTICAL FEATURE OF VIDEO STREAM

通过分析 MPEG视频流中 I帧的 8× 8DCT编码块的 DC系数的统计特征 ,用每个 88DCT编码块的 DC系数计算 I帧图象的亮度、行列直方图 ,比较 I帧之间直方图的差异 ,直接从原始的

By analysing statistical features of DC coefficient,computing intensity,row,and column histograms that are computed using DC coefficient of each 88 DCT encoded block in I frame,comparing the intensity,row,and column histograms of I frames,the transition point between two shots can be directly detected from raw MPEG video stream.