Hybrid IDM Algorithm for PIV

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F15%3A00230569" target="_blank" >RIV/68407700:21220/15:00230569 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Hybrid IDM Algorithm for PIV

Popis výsledku v původním jazyce

The accuracy of the measurements using PIV method is largely dependent not only on the quality of the measured data, but also on the method of evaluation of seeding particle displacement. Our work deals with the modification of nowadays already standard algorithm based on mutual deformation of individual images and combines this algorithm with a common iterative scheme that uses mutual integer displacement of particular investigated areas. Our designed and tested algorithm enables the user to increase the accuracy of the measured data, while the computation time necessary for the analysis is not increased in order. The article describes in detail the procedure of designing and testing of the final algorithm. In order to test the suitability of particular algorithms, it was first necessary to generate synthetic data with a known displacement and of adequate quality. Apart from modifying the classical iterative algorithm we also focused on a method to detect the exact position of the signal peak with the help of regression. Individual partial changes in the algorithm were tested and mutually compared so that the best combination can be determined. Finally, the resultant algorithm was comprehensively tested.

Název v anglickém jazyce

Hybrid IDM Algorithm for PIV

Popis výsledku anglicky

The accuracy of the measurements using PIV method is largely dependent not only on the quality of the measured data, but also on the method of evaluation of seeding particle displacement. Our work deals with the modification of nowadays already standard algorithm based on mutual deformation of individual images and combines this algorithm with a common iterative scheme that uses mutual integer displacement of particular investigated areas. Our designed and tested algorithm enables the user to increase the accuracy of the measured data, while the computation time necessary for the analysis is not increased in order. The article describes in detail the procedure of designing and testing of the final algorithm. In order to test the suitability of particular algorithms, it was first necessary to generate synthetic data with a known displacement and of adequate quality. Apart from modifying the classical iterative algorithm we also focused on a method to detect the exact position of the signal peak with the help of regression. Individual partial changes in the algorithm were tested and mutually compared so that the best combination can be determined. Finally, the resultant algorithm was comprehensively tested.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BK - Mechanika tekutin

OECD FORD obor

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Projekt

<a href="/cs/project/TE01020020" target="_blank" >TE01020020: Centrum kompetence automobilového průmyslu Josefa Božka</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Chemical, Biological and Physical Sciences

ISSN

2249-1929

e-ISSN

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Svazek periodika

Vol.5

Číslo periodika v rámci svazku

No.3

Stát vydavatele periodika

IN - Indická republika

Počet stran výsledku

16

Strana od-do

2982-2997

Kód UT WoS článku

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EID výsledku v databázi Scopus

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