| H.264编码中帧内预测算法研究 |
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| 引用本文： | 王海勇,孙雁飞,吴启宗.H.264编码中帧内预测算法研究[J].电视技术,2009,33(8). |
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| 作者姓名： | 王海勇 孙雁飞 吴启宗 |
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| 作者单位： | 1. 南京邮电大学,软件学院,江苏,南京,210003
2. 江苏省邮电规划设计院有限责任公司,江苏,南京,210006 |
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| 基金项目： | 国家“863”计划项目(2006AA01Z232);;江苏省自然科学基金项目(BK2007603);;南京邮电大学青蓝计划项目(NY207111) |
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| 摘 要： | 提出了一种适用于H.264的帧内预测快速算法,利用H.264帧内模式判决统计特性、绝对变换误差(SATD)与率失真(RD)的相关性,有效减少了预测模式的频率。实验表明,和H.264相比,编码速度平均提高63.92%,而图像质量和输出码率基本不变。
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| 关 键 词： | H.264 帧内预测 率失真 图像编码 |
Research on Intra Prediction Algorithm in H.264 |
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| WANG Hai-yong,SUN Yan-fei,WU Qi-zong.Research on Intra Prediction Algorithm in H.264[J].Tv Engineering,2009,33(8). |
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| Authors: | WANG Hai-yong SUN Yan-fei WU Qi-zong |
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| Affiliation: | 1.College of Software;Nanjing University of Posts and Telecommunications;Nanjing 210003;China;2.Jiangsu Post & Telecommunications Planning and Designing Institute Co.;Ltd.;Nanjing 210006;China |
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| Abstract: | In this paper,a fast intra prediction algorithm for H.264 coding is introduced.The proposed algorithm uses statistical characteristic of intra mode decision and correlation of Sums of Absolute Transform Differences(SATD)and Rate Distortion(RD)performance,efficiently endues the frequency of prediction modes.Experimental results show that compared with the standard intra prediction mode of H.264,the proposed algorithm can gain 63.92% coding performance increases averagely,while the PSNR and the quality of ima... |
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| Keywords: | H 264 intra prediction rate distortion image coding |
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