一种自适应的关键帧选取算法

An Adaptive Key Frame Selection Algorithm

文章针对传统的视频编码方法中,当预测图像中绝大多数图像块在参考帧中都找不到相似的块时,其预测效果急剧降低的问题,在对具有预测关系的视频图像集进行分析计算的基础上,设计了一种动态选择关键帧的算法。实验结果表明,该方法能有效地提高视频图像的压缩率。

Aiming at the problem that in conventional video coding standard the prediction effect will be dramatically reduced when the vast majority of macroblock in the predicted images can not find a similar macroblock in reference frame,a dynamic key frame selection algorithm is designed on the basis of analysis and calculation of the set of video images with prediction relationship.Experimental results show that the algorithm can effectively improve the compression rate of the video images.