| 基于OpenCV实现金字塔光流法对表面流场的计算 |
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| 引用本文： | 凃洋,刘春晶,曹文洪,王向东. 基于OpenCV实现金字塔光流法对表面流场的计算[J]. 中国水利水电科学研究院学报, 2016, 0(3): 224-228 |
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| 作者姓名： | 凃洋 刘春晶 曹文洪 王向东 |
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| 作者单位： | 中国水利水电科学研究院, 北京 100048;中国水利水电科学研究院, 北京 100048;中国水利水电科学研究院, 北京 100048;中国水利水电科学研究院, 北京 100048 |
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| 基金项目： | 国家自然科学基金项目(11472310);国家国际科技合作专项项目(2015DFR70980) |
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| 摘 要： | 本文基于OpenCV视觉函数库和 VisualStudio2010 平台,采用 C++编程语言开发了基于金字塔光流法的 PTV(Particle Track Velocimetry)表面流场测量程序。程序计算结果显示:基于金字塔光流法实现 PTV 技术,需要在金字塔光流法对示踪粒子角点跟踪匹配的基础上进一步实现示踪粒子的质心匹配,该过程可使金字塔光流法准确、合理地应用于 PTV 技术,实现对示踪粒子运动速度的正确计算,同时还可剔除掉金字塔光流法对非匹配关系的角点产生的错误匹配。
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| 关 键 词： | OpenCV 金字塔光流 PTV 角点匹配 质心匹配 |
| 收稿时间： | 2015-11-10 |
Realization of the surface flow field measurement by Pyramid LK method based on OpenCV |
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| TU Yang,LIU Chunjing,CAO Wenhong and WANG Xiangdong. Realization of the surface flow field measurement by Pyramid LK method based on OpenCV[J]. Journal of China Institute of Water Resources and Hydropower Research, 2016, 0(3): 224-228 |
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| Authors: | TU Yang LIU Chunjing CAO Wenhong WANG Xiangdong |
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| Affiliation: | China Institute of Water Resources and Hydropower Research, Beijing 100048, China;China Institute of Water Resources and Hydropower Research, Beijing 100048, China;China Institute of Water Resources and Hydropower Research, Beijing 100048, China;China Institute of Water Resources and Hydropower Research, Beijing 100048, China |
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| Abstract: | This research adopts the Pyramid LK optical flow method for PTV surface flow field measure-ment. Program is developed using C++ language,based on OpenCV vision function library and VisualStudio 2010 platform in this paper. Program application results show that the application of Pyramid LK optical flow method in PTV technology needs to further realize the centroid matching of trace particles based on the corner matching, which can make Pyramid LK optical flow method be well applied to the PTV tech-nique,be able to obtain good results of the tracer particles,and automatically remove the error tracking of corners which do not have matching relationships in the Pyramid LK optical flow method. |
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| Keywords: | OpenCV Pyramid LK optical flow method PTV corner matching centroid matching |
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