h.264视频压缩编码快速运动估计算法.研究

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1、Abstractmotionestimationtimeanaveragereductionabout28%.BasedonthecombinationwithUMHexagonSalgorithmandclassicalblockmatchingmotionestimationalgorithm,anadaptivehybridtemplatemotionestimationalgorithmisproposed.Basedonthespace-timerelativityofmacroblock,theal

2、gorithmachievedstaticblockdeterminationandendingthesearchstaticblockdirectly;Accordingtothetypeofmovement,thealgorithmadaptiveselectionofinitialsearchpointandsearchtemplate,forasmallmotionblockitwillskipabigtemplatecoarsesearchingandintothesmalltemplatefines

3、earchingdirectly.TheexperimentalresultsshowthatthesearchingaccuracyoftheadaptivehybridtemplatemotionestimationalgorithmisclosetoUMHexagonSalgorithm,butitssearchingspeedisbetterthanthatoftheexistingfastmotionestimationalgorithminH.264standard.Keywords：videoco

4、mpressioncoding；motionestimation；earlyterminationtechnique；space-timerelativityIII江西理工大学硕士学位论文目录目录摘要..................................................................IAbstract.................................................................II第一章绪论...........

5、....................................................11.1研究背景.........................................................11.2研究现状.........................................................21.3研究内容.........................................................31.4结构安排...

6、......................................................4第二章H.264视频编码标准概述.............................................52.1H.264标准简介....................................................52.2H.264标准编解码器................................................52.3H.264标准关键技

7、术................................................62.3.1帧内预测.....................................................62.3.2帧间预测.....................................................82.3.3运动矢量.....................................................82.3.4整数变换与量化.......

8、.......................................102.3.5熵编码......................................................112.3.6去方块滤波..................................................122.3.7率失真优化.................