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中文摘要：
提出了基于双视角立体镜头的火焰面三维扩散速度场的重建方法．该方法首先利用立体镜头，通过单个高速CCD靶面同时获取两个不同角度的火焰图像，然后通过标定得到相机参数，最后通过基于矢量奇异值分解（SVD）的图像匹配算法，重建得到火焰面三维坐标及扩散速度．通过试验重建了不同工况下的甲烷预混火焰面三维结构及其扩散速度．计算结果表明，双视角三维重建方法可以用于湍流火焰面三维扩散速度场的定量分析．
英文摘要：
A method for premixed flame surface visualization and 3D stretch speed calculation was proposed based on high speed stereoscoopic image. Camera parameters were recovered after calibration and the singular value decomposition （SVD） algorithm was used for solving correspondence problem. The premixed methane flame surface orientation was visualized and the stretch speed was calculated according to coordination movement. The result show the method can be widely used for 3D flame surface reconstruction and stretch velocity calculation.
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