| H.264帧间编码模式选择快速算法 |
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| 引用本文： | 何莉莉. H.264帧间编码模式选择快速算法[J]. 西华大学学报(自然科学版), 2005, 24(4): 40-42 |
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| 作者姓名： | 何莉莉 |
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| 作者单位： | 西华大学数学与计算机学院,四川,成都,610039 |
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| 摘 要： | 作者针对H．264帧间编码宏块模式选择计算复杂度较高的缺点，提出了一种模式选择快速算法。该算法根据帧间编码宏块的树状分割模式特点，应用了若干简单有效的终止搜索准则，并采用动态阈值以进一步加快模式选择的速度。模拟实验表明：提出算法减少了编码器无效遍历过程，在取得相近PSNR和比特率条件下。编码速度得到较大提高，适合实时视频应用。
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| 关 键 词： | 视频编码 H.264 运动估计 模式选择 算法 |
| 文章编号： | 1673-159X(2005)04-0040-03 |
| 收稿时间： | 2004-12-08 |
| 修稿时间： | 2004-12-08 |
A Fast Mode Selection Algorithm for Inter-frame Coding in H.264 |
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| HE Li-Li. A Fast Mode Selection Algorithm for Inter-frame Coding in H.264[J]. Journal of Xihua University(Natural Science Edition), 2005, 24(4): 40-42 |
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| Authors: | HE Li-Li |
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| Abstract: | In order to overcome the disadvantage of high computational complexity, a fast mode selection algorithm is proposed. Through analyzing the character of tree-structured block segmentation, the computational complexity can be further reduced by applying several terminatesearching rules and a dynamic threshold, which is adopted to further accelerate the procedure of mode selection. Experimental results show that ineffective searching procedure is simplified, coding speed is improved while the same PSNR and bit rate are obtained. So it is suitable for real-time video applications. |
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| Keywords: | video coding H. 264 motion estimation mode selection algorithm |
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