New adaptive sampling method in particle image velocimetry
New adaptive sampling method in particle image velocimetry
复制标题
粒子图像测速中的新型自适应采样方法
DOI:
10.1088/0957-0233/26/3/037002
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发表时间:
2015-02
影响因子:
2.4
通讯作者:
Mo, Jianwei
中科院分区:
文献类型:
--
作者:
Yu, Kaikai;Xu, Jinglei;Tang, Lan;Mo, Jianwei
This study proposes a new adaptive method to enable the number of interrogation windows and their positions in a particle image velocimetry (PIV) image interrogation algorithm to become self-adapted according to the seeding density. The proposed method can relax the constraint of uniform sampling rate and uniform window size commonly adopted in the traditional PIV algorithm. In addition, the positions of the sampling points are redistributed on the basis of the spring force generated by the sampling points. The advantages include control of the number of interrogation windows according to the local seeding density and smoother distribution of sampling points. The reliability of the adaptive sampling method is illustrated by processing synthetic and experimental images. The synthetic example attests to the advantages of the sampling method. Compared with that of the uniform interrogation technique in the experimental application, the spatial resolution is locally enhanced when using the proposed sampling method.
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影响因子:
2.4
作者:
R. Theunissen;F. Scarano;M. Riethmuller
通讯作者:
R. Theunissen;F. Scarano;M. Riethmuller
影响因子:
2.4
作者:
A. Stitou;M. Riethmuller
通讯作者:
A. Stitou;M. Riethmuller
影响因子:
2.4
作者:
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通讯作者:
J. Rohály;F. Frigerio;D. Hart
影响因子:
2.4
作者:
T. Astarita
通讯作者:
T. Astarita
影响因子:
2.4
作者:
R. Theunissen;F. Scarano;M. Riethmuller
通讯作者:
R. Theunissen;F. Scarano;M. Riethmuller