| 减小帧内编码分辨率的快速算法 |
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| 引用本文： | 张健,沈庭芝,姜微,王卫江.减小帧内编码分辨率的快速算法[J].北京理工大学学报,2009,29(3):250-252. |
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| 作者姓名： | 张健 沈庭芝 姜微 王卫江 |
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| 作者单位： | 北京理工大学,信息科学技术学院电子工程系,北京,100081 |
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| 摘 要： | 随着H.264视频编码标准的应用,转换编码的难度也越来越高. 为了提高帧内编码图像分辨率减小的速度,提出了一种基于方向性的快速算法. 实验结果表明,该算法在很少的图像质量损失下能节省23%的重新编码时间,从而提高了转换编码的实时性及带宽变换能力.
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| 关 键 词： | 转换编码 减小分辨率 帧内预测 |
| 收稿时间： | 2008/2/25 0:00:00 |
Fast Algorithm for Reducing Intraprediction Resolution |
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| ZHANG Jian,SHEN Ting-zhi,JIANG Wei and WANG Wei-jiang.Fast Algorithm for Reducing Intraprediction Resolution[J].Journal of Beijing Institute of Technology(Natural Science Edition),2009,29(3):250-252. |
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| Authors: | ZHANG Jian SHEN Ting-zhi JIANG Wei and WANG Wei-jiang |
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| Institution: | Department of Electronic Engineering;School of Information Science and Technology Beijing Institute of Technology;Beijing 100081;China |
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| Abstract: | With the implementation of the new video coding standard H.264,there appeared higher demands in spatial resolution transcoding in H.264.Present here a fast algorithm based on direction in intra frame downsizing in H.264,which can improve the speed of reducing intra-prediction frame resolution.Experiments showed that this algorithm can speed up 23 percent transcoding time in intra-prediction frame in H.264 with slight PSNR degradation.It gives certain improvement in real-time for transcoding and ability of c... |
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| Keywords: | transcoding downsizing intraprediction |
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