摘要
基于降低分辨率的视频代码转换模型 ,对运动矢量和宏块类型进行了精简 .提出一种基于量化误差的自适应运动矢量模型 ,从而减小了搜索域 ,使最佳化输出运动矢量能进行快速运动估值 .该方法在视频图象质量没有明显失真的前提下 。
The motion vectors and macroblock type during video transcoding based on resolution reduction are refined in this paper. A model of adaptive motion vectors is proposed based on the sum of the differential quantization errors, thus to reduced the search area. It is possible to achieve fast motion estimation for near optimal outgoing motion vectors. This method may improve the computational complexity without significant losing in quality.
出处
《应用科学学报》
CAS
CSCD
2001年第2期127-130,共4页
Journal of Applied Sciences
基金
安徽省自然科学基金资助项目 (990 43 12 4)
