Journal of the Korean Society of Visualization (한국가시화정보학회지)
- Volume 3 Issue 2
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- Pages.71-78
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- 2005
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- 1598-8430(pISSN)
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- 2093-808X(eISSN)
Uncertainty Analysis of Cross-Correlation Algorithm based on FFT by PIV Standard Images
표준 영상에 의한 FFT 기반 상호상관 PIV 알고리즘의 불확도 해석
Abstract
Uncertainty introduced by a cross-correlation algorithm based on FFT has been investigated using PIV standard images. The standard images were generated by the Monte Carlo simulation method. Both bias and random errors from the velocity vector have been analyzed with regard to the particle diameter, displacement, and the number of particles. The uncertainty of velocity is evaluated based upon the IS0/IEC standard. As a result, a total error of
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