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H.264帧间预测模式的快速选择算法 被引量:11

Novel Fast Selecting Inter Prediction Mode Algorithm Based H.264
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摘要 根据H.264预测帧的编码算法,本文研究了利用图像序列的时/空相关性,正确选择预测编码模式的快速算法,并提出了模式选择参数的自适应更新算法.实验结果表明,与未使用快速模式选择算法相比,在码率增加2%,恢复图像平均PsNR(峰值信噪比)下降不到0.2dB的情况下,使用快速算法的编码速度提高2~3倍,满足实时视频通信的要求.算法与H.264标准兼容,可用于实际产品. Based on H. 264, this paper proposes a novel fast selecting inter prediction mode algorithm by using temporal/spatial correlation of video sequence. Two key parameters by which inter prediction mode is determined is adaptive updated. Simulation results show that inter macroblock encoding is obviously speeded up by using above methods. Furthermore, these algorithms are compatible with H.264 standard,and can be used in practice.
出处 《电子学报》 EI CAS CSCD 北大核心 2007年第4期697-700,共4页 Acta Electronica Sinica
基金 国家自然科学基金(No.60172030) 陕西省自然科学基础研究计划基金(No.2004F07) 综合业务网理论与关键技术国家重点实验室资助课题
关键词 视频通信 H.264 预测模式 时/空相关性 video communication H.264 prediction mode temporal/spatial correlation
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参考文献6

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