Analysis of weighting windows for image deformation methods in PIV

被引：93

作者：

Astarita, T. ^{[1
]}

机构：

[1] Univ Naples Federico 2, DETEC, I-80125 Naples, Italy

来源：

EXPERIMENTS IN FLUIDS | 2007年 / 43卷 / 06期

关键词：

D O I：

10.1007/s00348-007-0314-2

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The use of a weighting window (WW) in the evaluation of the cross-correlation coefficient and in the iterative procedure of image deformation method for particle image velocimetry (PIV) applications can be used to both stabilise the process and to increase the spatial resolution. The choice of the WW is a parameter that influences the complete PIV algorithm. Aim of this paper is to examine the influence of this aspect on both the accuracy and spatial resolution of the PIV algorithm. Results show an overall accordance between the theoretical approach and the simulation both with synthetic and real images. The choice of the combination of WW influences significantly the spatial resolution and accuracy of the PIV algorithm.

引用

页码：859 / 872

页数：14

共 16 条

[1]

[Anonymous], HDB MATH FUNCTIONS F

[2] Analysis of interpolation schemes for image deformation methods in PIV: effect of noise on the accuracy and spatial resolution [J].