Analysis of velocity interpolation schemes for image deformation methods in PIV |
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| Authors: | T Astarita |
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| Institution: | (1) University of Naples Federico II, DIAS, P.le Tecchio 80, 80125 Naples, Italy |
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| Abstract: | The spatial resolution of PIV can be increased significantly by using an image deformation method (IDM) and very small grid
distance (i.e. the final distance between vectors), therefore, also increasing the processing time. By using an interpolation
scheme with a good spectral response, in the dense predictor step of the algorithm, it is possible to increase the grid distance
without decreasing the spatial resolution therefore decreasing the total processing time.
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