| 基于多尺度的光流算法在PIV中的应用 |
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| 引用本文： | 孙立志,朱晓松,韩丽华. 基于多尺度的光流算法在PIV中的应用[J]. 水运工程, 2006, 0(3): 18-21 |
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| 作者姓名： | 孙立志 朱晓松 韩丽华 |
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| 作者单位： | 1. 大连理工大学海岸及近海工程国家重点实验室,辽宁,大连,116024
2. 大连理工大学土木水利学院,辽宁,大连,116024 |
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| 基金项目： | 中国科学院资助项目;国家科技攻关项目 |
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| 摘 要： | 提出一种基于多尺度分析的光流算法,此算法可以应用于PIV技术中。该方法针对数字图像建立整体光流模型,计算出全场象素点的速度矢量,可以修正原有的互相关算法计算所得结果中的错误矢量,能体现出互相关算法结果所体现不出的图像信息,对于PIV技术的发展有着重要的意义。文章介绍了光流模型的建立,并与传统互相关算法的结果进行了比较,验证了新方法得到的结果比原有算法所得到的结果有着明显的改进。
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| 关 键 词： | 多尺度 光流 数字图像 |
| 文章编号： | 1002-4972（2006）03-0018-04 |
| 收稿时间： | 2005-11-01 |
| 修稿时间： | 2005-11-01 |
Application of Optical-flow Method Based on Multi-scales in PIV |
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| SUN Li-zhi,ZHU Xiao-song,HAN Li-hua. Application of Optical-flow Method Based on Multi-scales in PIV[J]. Port & Waterway Engineering, 2006, 0(3): 18-21 |
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| Authors: | SUN Li-zhi ZHU Xiao-song HAN Li-hua |
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| Affiliation: | 1. The State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China; 2. School of Civil and Hydraulic Engineering, Dalian 116024, China |
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| Abstract: | This paper presents an optical-flow method based on multi-scales used in PIV,by which,an optical-flow model based on digital images is set up and the speed vectors of the whole flow field is computed,modifying mistaken vectors gained through the original model named area-correlation,and incarnating some messages which can't be incarnated by area-correlation.Thus,this method is of great significance for the development of PIV technique.Presenting the setting up of optical model and comparing it with original area-correlation method,this paper verifies that the result from the new method has obvious advancement comparing with the original method. |
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| Keywords: | PIV |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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