| 一种新的面向隔行视频的AVS帧内预测模式 |
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| 引用本文： | 陈亮,谭毅华,田金文.一种新的面向隔行视频的AVS帧内预测模式[J].高技术通讯,2007,17(3):221-225. |
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| 作者姓名： | 陈亮 谭毅华 田金文 |
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| 作者单位： | 华中科技大学图像处理与智能控制教育部重点实验室,武汉,430074 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 详细介绍了AVS1-P2中的帧内预测和MBAFF技术,提出了一种新的帧内预测模式.通过分析其中的5种亮度帧内预测模式和新帧内预测模式的相关性利用度,证明该模式很好地利用了隔行视频像素的空间分布特点,与原有的预测模式相比,更好地去除了图像块之间的空间相关性.实验表明该模式可以在标清、高清隔行视频的帧内预测上获得平均0.12dB以上的信噪比增益,平均减少1.77%的码流,是一种有效提高编码效率的预测模式.
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| 关 键 词： | 视频编解码 隔行视频 帧内预测 AVS |
| 收稿时间： | 2005-12-02 |
| 修稿时间： | 2005-12-02 |
A new intra prediction mode for interlaced video in AVS |
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| Chen Liang,Tan Yihua,Tian Jinwen.A new intra prediction mode for interlaced video in AVS[J].High Technology Letters,2007,17(3):221-225. |
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| Authors: | Chen Liang Tan Yihua Tian Jinwen |
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| Affiliation: | State Key Laboratory of Education Ministry for Image Processing and Intelligent Control, Institute of Pattern Recognition and Artificial Intelligence, Huazhong University of Science and Technology, Wuhan 430074 |
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| Abstract: | The technologies of intra prediction and MBAFF were introduced, and a new intra prediction mode based on the characteristics of spatial distribution in interlaced video was proposed. The spatial correlation of five luma intra prediction modes in AVS-P2 and the new mode were analyzed. From the analysis result, it can be concluded that the new mode can exploit the spatial correlation better and predict the samples more precisely than the existed ones. The experimental resuits showed that the average gain in Peak Signal to Noise Ratio was above 0.12dB and the average reduction in bit-rate was above 1.77%, so the proposed mode is an effective prediction mode for improvement of coding performance. |
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| Keywords: | video coding interlaced video intra prediction AVS |
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