| 基于结构相似度的H.264快速算法 |
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| 引用本文： | 杨春玲;王华兴.基于结构相似度的H.264快速算法[J].华南理工大学学报(自然科学版),2008,36(8). |
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| 作者姓名： | 杨春玲;王华兴 |
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| 作者单位： | 华南理工大学电子与信息学院,广东广州510640 |
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| 基金项目： | 国家自然科学基金，广东省自然科学基金 |
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| 摘 要： | H.264比以往的视频压缩标准具有更高的压缩效率, 然而编码的复杂度也大大增加. 针对降低编码复杂度，提出了基于结构相似度(SSIM)的快速算法(FMEBSS), 该算法可以通过减少不必要的运动搜索点和复杂的搜索模式, 达到减小运动估计复杂度的目的. 试验结果表明在保证编码质量不下降的前提下, 该算法可以平均节约编码时间约50%, 同时有效地降低了编码码流长度.
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| 关 键 词： | 运动估计 H.264 结构相似度（SSIM） |
| 收稿时间： | 2007-7-30 |
| 修稿时间： | 2008-2-27 |
A Novel Fast Motion Estimation Algorithm Based on SSIM for H.264 Video Coding |
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| Chun-Ling Yang Wang Hua-Xing.A Novel Fast Motion Estimation Algorithm Based on SSIM for H.264 Video Coding[J].Journal of South China University of Technology(Natural Science Edition),2008,36(8). |
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| Authors: | Chun-Ling Yang Wang Hua-Xing |
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| Abstract: | H.264 achieves considerablely higher coding efficiency compared with previous video coding standards, whereas the complexity is increased significantly at the same time. For the purpose of reducing the complexity, a novel fast algorithm based on structural similarity (SSIM) in motion estimation (ME) process (FMEBSS) is proposed, which can greatly reduced the complexity of ME by eliminating the unnecessary search positions and reducing complex prediction mode. Simulation results demonstrate that the proposed method can averagely reduce the coding time by about 50%, the compression ratio is improved at the same time, and the video quality is maintained. |
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| Keywords: | Motion Estimation H 264 Structural Similarity (SSIM) |
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