| 气液两相流中改进图像互相关测速的完整实现 |
| |
| 引用本文： | 薛婷.气液两相流中改进图像互相关测速的完整实现[J].光电子．激光,2010(6):903-906. |
| |
| 作者姓名： | 薛婷 |
| |
| 作者单位： | 天津大学电气与自动化工程学院; |
| |
| 基金项目： | 国家自然科学基金资助项目(60902084); 教育部博士点新教师基金资助项目(200800561059); 精密测试技术及仪器国家重点实验室开放基金资助项目(PIL0902) |
| |
| 摘 要： | 针对气液两相流中密集气(液)相速度场准确测量的需要,提出了改进图像互相关测速的完整实现方法。基于傅里叶变换的图像互相关测速原理,采用回归迭代互相关算法以提高测量精度,基于相邻速度属性对误矢量进行修正,并采用亚像素拟合方法准确定位,通过对不同拟合算法进行比较,验证了3点高斯拟合算法的优越性。实验结果表明,本文提出的测量方案可以有效提高图像互相关测速的精度。
|
| 关 键 词： | 气液两相流 速度场 回归迭代互相关 亚像素拟合 误矢量修正 |
Complete approach to velocity field measurement with improved image cross-correlation method in gas-liquid two phase flow |
| |
| XUE Ting.Complete approach to velocity field measurement with improved image cross-correlation method in gas-liquid two phase flow[J].Journal of Optoelectronics·laser,2010(6):903-906. |
| |
| Authors: | XUE Ting |
| |
| Institution: | XUE Ting,QU Wei-jie,MENG Xin-dong,ZHANG Tao(College of Electrical Engineering and Automation,Tianjin University,Tianjin 300072,China) |
| |
| Abstract: | To measure the velocity field of dense gas(liquid) in gas-liquid two phase flow accurately,a complete approach for velocity measurement with improved image cross-correlation method is presented.Based on the theory of fast Fourier transformation image cross correlation,the method measures the velocity field with a recursive cross correlation algorithm to improve the measurement precision,corrects the false vectors based on the attribute of adjacent velocity vectors,and locates the velocity vector more accura... |
| |
| Keywords: | gas-liquid two phase flow velocity field recursive cross correlation sub-pixel fitting false vectors correction |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《光电子．激光》浏览原始摘要信息 |
| 点击此处可从《光电子．激光》下载免费的PDF全文 |
