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A new two-frame particle tracking algorithm using match probability SCIE SCOPUS

Title
A new two-frame particle tracking algorithm using match probability
Authors
Baek, SJLee, SJ
Date Issued
1996-11
Publisher
SPRINGER
Abstract
A new particle tracking algorithm using the concept of match probability between two consequent image frames has been developed to obtain an instantaneous 2-dimensional velocity field. Our proposed algorithm for correctly tracking particle paths from only two image frames is based on iterative estimation of match probability and no-match probability as a measure of the matching degree. A computer simulation has been carried out to study the performance of the developed algorithm by comparing with the conventional 4-frame Particle Tracking Velocimetry (PTV) method. The effect of various thresholds used in the developed algorithm on the recovery ratio and the error ratio were also investigated. Although the new algorithm relies on the iterative updating process of match probability which is time consuming, computation time is relatively short compared to that of the 4-frame PTV method. Additionally, the new 2-frame PTV algorithm recovers more velocity vectors and has a higher dynamic range and a lower error ratio.
Keywords
IMAGE VELOCIMETRY; FLOW
URI
https://oasis.postech.ac.kr/handle/2014.oak/21425
DOI
10.1007/BF01893303
ISSN
0723-4864
Article Type
Article
Citation
EXPERIMENTS IN FLUIDS, vol. 22, no. 1, page. 23 - 32, 1996-11
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이상준LEE, SANG JOON
Dept of Mechanical Enginrg
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