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基于频域特征的H.264/AVC帧内编码模式快速预测

王正宁 彭强 诸昌钤

王正宁, 彭强, 诸昌钤. 基于频域特征的H.264/AVC帧内编码模式快速预测[J]. 西南交通大学学报, 2007, 20(3): 345-351.
引用本文: 王正宁, 彭强, 诸昌钤. 基于频域特征的H.264/AVC帧内编码模式快速预测[J]. 西南交通大学学报, 2007, 20(3): 345-351.
WANG Zhengning, PENG Qiang, ZHU Changqian. Fast H.264/AVC Intra-Prediction Using Frequency Domain Features[J]. Journal of Southwest Jiaotong University, 2007, 20(3): 345-351.
Citation: WANG Zhengning, PENG Qiang, ZHU Changqian. Fast H.264/AVC Intra-Prediction Using Frequency Domain Features[J]. Journal of Southwest Jiaotong University, 2007, 20(3): 345-351.

基于频域特征的H.264/AVC帧内编码模式快速预测

基金项目: 

国家自然科学基金资助项目(60672099)

详细信息
    作者简介:

    王正宁(1979- ),男,博士研究生,研究方向为视频压缩与传输,E-mail:znwang@home.swjtu.edu.cn

Fast H.264/AVC Intra-Prediction Using Frequency Domain Features

  • 摘要: 为降低H.264/AVC帧内预测计算复杂度,提出了基于频域特征的快速帧内编码模式预测算法.首先,对要编码的4×4块进行DCT变换,得到少数的几个DCT系数.然后,通过这几个系数计算块的特征方向和方差.最后,根据特征方向和方差计算最可能的几种预测模式.实验验证了该算法在不牺牲图像质量和压缩效率的基础上将帧内预测的计算复杂度平均降低了67.5%.

     

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出版历程
  • 收稿日期:  2006-11-18
  • 刊出日期:  2007-06-25

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