The proposed method determines the motion activity and visual content change of the MPEG compressed video by using the luminance DCT DC value, macroblock type and motion vector.
本文算法利用亮度DCT DC值、宏块类型和运动向量来确定MPEG压缩视频中运动活动和视觉内容变化。
By analyzing MPEG compressed parameters, a method that acquiring color features directly using DC coefficients has been presented.
文章通过分析MPEG压缩参数，提出了直接利用DC系数获取视频图像颜色特征的方法。
应用推荐