| 自适应全搜索比特面匹配算法的分析与改进 |
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| 引用本文： | 郭红星,余胜生,周敬利.自适应全搜索比特面匹配算法的分析与改进[J].华中科技大学学报(自然科学版),2001,29(9):13-15. |
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| 作者姓名： | 郭红星 余胜生 周敬利 |
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| 作者单位： | 华中科技大学计算机科学与技术学院 |
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| 基金项目： | 湖北省自然科学基金资助项目 (99J0 1 0 )，中国博士后科学基金资助项目 |
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| 摘 要： | 分析了Feng等提出的简单自适应全搜索比特面匹配运动估计算法的不足，对其中比特面的计算方法、搜索起点的选择及比特面匹配准则搜索失败后的处理策略等方面作了改进，实验结果表明，改进后的算法的运动估计性能比原算法有较大提高，对于可视电话中的头肩视频序列，性能与全搜索法差别不大，且计算量仅为全搜索法的1／6。
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| 关 键 词： | 视频编码 运动估计 块匹配 算法复杂性 自适应全收缩匹配算法 比特面匹配准则 |
| 文章编号： | 1000-8616(2001)09-0013-03 |
| 修稿时间： | 2001年11月30 |
Analyzing Adaptive Full Search Bit-plane Matching Algorithm and Its Improvement |
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| Guo Hongxing Yu Shengsheng Zhou Jingli College of Computer Sci. & Tech.,HUST,Wuhan ,China..Analyzing Adaptive Full Search Bit-plane Matching Algorithm and Its Improvement[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2001,29(9):13-15. |
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| Authors: | Guo Hongxing Yu Shengsheng Zhou Jingli College of Computer Sci & Tech HUST Wuhan China |
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| Institution: | Guo Hongxing Yu Shengsheng Zhou Jingli College of Computer Sci. & Tech.,HUST,Wuhan 430074,China. |
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| Abstract: | Based on analyzing disadvantages of the simple adaptive full search bit-plane matching motion estimation algorithm, some modifications such as computing method for the bit planes, selection for the search origin and processing strategy for the inefficacy of the bit plane matching criterion are proposed. Computer simulation results show that the improved algorithm is better than the old one. It can achieve similar performance to the full search method and about 5/6 savings in computation for head and shoulder video sequences in videophones. |
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| Keywords: | video coding motion estimation block matching algorithm complexity |
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