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Tomographic PTV

机译：断层摄影PTV

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A new tomographic PTV(Tomo-PTV) was proposed and its performance was compared with the tomographic PIV(Tomo-PIV). In order to construct the new tomographic PTV for the calculation of the vector fields, an affine transformation was newly introduced. Initial vectors were obtained by the match probability method, and were used for the calculation of the affine transformation in order to get the final vectors. Four-camera based tomographic PTV system was constructed. By adopting a new factor called degree of reality, the real particles were easily separated from ghost particles groups in the reconstructed tomographic voxel images. Two types of flows, a ring vortex and an impinging jet, were tested by the constructed tomographic PTV, and their results were compared with those obtained by the conventional tomographic PIV. The construction method for the voxel images was MLOS-MART method. Strong points and weak points of the two measurement methods, tomo-PTV and tomo-PIV were made.
机译：提出了一种新的层析X射线摄影机（Tomo-PTV），并将其性能与层析X射线摄影PIV（Tomo-PIV）进行了比较。为了构造用于计算矢量场的新断层摄影PTV，新引入了仿射变换。通过匹配概率方法获得初始向量，并将其用于仿射变换的计算以获得最终向量。构建了基于四相机的断层摄影PTV系统。通过采用一种称为现实程度的新因子，可以轻松地在重建的层析X射线体素图像中将真实粒子与幻影粒子组分离。构造的层析X射线摄影机测试了两种类型的流动，即环形涡流和撞击射流，并将其结果与常规层析X射线摄影机IV进行了比较。体素图像的构建方法是MLOS-MART方法。分别测定了tomo-PTV和tomo-PIV这两种测量方法的优缺点。

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