Spatial resolution of the Stereo PIV technique

Experiments in Fluids (Impact Factor: 1.67). 04/2009; 46(4):643-658. DOI: 10.1007/s00348-008-0589-y


A theoretical analysis of the spatial resolution in terms of modulation transfer function of the Stereo PIV technique with
and without the correction of the misalignment error is performed, and the results show that some wavelengths of the flow
field can be significantly dephased and modulated. A performance assessment has been conducted with both synthetic and real
images and shows a good agreement with the theoretical analysis. The reconstruction of the three-dimensional displacement
field is achieved using both the methods proposed by Soloff et al. (Meas Sci Technol 8:1441–1454, 1997) and by Willert (Meas Sci Technol 8:1465–1479, 1997).

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