| 一种基于航摄图像特性的H.263压缩算法的改进 |
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| 引用本文： | 钟步雷,谢帅铃,蔡志勇.一种基于航摄图像特性的H.263压缩算法的改进[J].航空电子技术,2008,39(2). |
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| 作者姓名： | 钟步雷 谢帅铃 蔡志勇 |
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| 作者单位： | 1. 南昌大学信息工程学院,南昌,330031
2. 南昌大学信息工程学院,南昌,330031;洪都集团飞机设计所,南昌,330024 |
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| 摘 要： | 研究了航摄视频图像的特性,并根据航摄视频图像的特性,从预测初始搜索点、搜索策略和半像素精度运动估值方面改进了H.263标准中的运动估计算法。实验结果表明,针对航摄图像特性改进的算法比全搜索算法和三步搜索算法具有更高的搜索效率。
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| 关 键 词： | 航摄图像特性 H.263 运动估计 预测运动矢量 搜索效率 |
Improvement on H.263 Compression Algorithm Based on Aerial Video Image Property |
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| ZHONG Bu-lei,XIE Shuai-ling,CAI Zhi-yong.Improvement on H.263 Compression Algorithm Based on Aerial Video Image Property[J].Avionics Technology,2008,39(2). |
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| Authors: | ZHONG Bu-lei XIE Shuai-ling CAI Zhi-yong |
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| Abstract: | Aerial video image property is investigated in this paper.According to the aerial video image property,the motion estimation algorithm in H.263 is improved from the forecast initial search point,search strategy and campaign- pixel accuracy.The experimental results show that,in the view of aerial video image property the improved search algorithm has a higher search efficiency than the entire search algorithm and the three-step search algorithm. |
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| Keywords: | aerial video image property H 263 motion estimation forecast motion vector search efficiency |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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