| 多普勒全场测速技术中图像及数据处理 |
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| 引用本文： | 何春生,张洪军,王天宇.多普勒全场测速技术中图像及数据处理[J].中国计量学院学报,2011,22(4):301-307. |
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| 作者姓名： | 何春生 张洪军 王天宇 |
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| 作者单位： | 中国计量学院计量测试工程学院,浙江杭州,310018 |
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| 基金项目： | 国家自然科学基金资助项目，浙江省科技支撑和引导计划项目 |
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| 摘 要： | 介绍了多普勒全场测速技术(DGV)图像及数据处理的方法和过程.图像处理过程中,经背景去除、灰度校正、几何校正等,能够有效滤除实验环境中的背景光,修正不同相机之间感光度不同的影响,校正流场区域在图像中的几何形状的形变.针对转盘测速实验图像进行处理,得到的速度分布与实际速度分布吻合较好,证明所采用的方法是可行的.
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| 关 键 词： | 多普勒全场测速 图像处理 数据处理 流场测量 |
Image and data processing of a doppler global velocimetry |
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| HE Chun-sheng,ZHANG Hong-jun,WANG Tian-yu.Image and data processing of a doppler global velocimetry[J].Journal of China Jiliang University,2011,22(4):301-307. |
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| Authors: | HE Chun-sheng ZHANG Hong-jun WANG Tian-yu |
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| Affiliation: | HE Chun-sheng,ZHANG Hong-jun,WANG Tian-yu(College of Metrology and Measurement Engineering,China Jiliang University,Hangzhou 310018,China) |
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| Abstract: | Now,method of image and data processing in Doppler global velocimetry(DGV) was presented.Image processing methods used in this work including background removal,gray scale correction and geometric correction.Through these processes,background in the experimental environment was filtered out effectively,effect of different in photosensibility of the two cameras was removed,and the geometrical distortion of flow field in the images was corrected.The method of image and data processing was used in a rotating w... |
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| Keywords: | doppler global velocimetry image processing data processing flow field measurement |
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