Real-Time Optical Measurement of Displacements Using Subpixel Image Registration

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F19%3A00332506" target="_blank" >RIV/68407700:21110/19:00332506 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1007/s40799-019-00315-1" target="_blank" >https://doi.org/10.1007/s40799-019-00315-1</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s40799-019-00315-1" target="_blank" >10.1007/s40799-019-00315-1</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Real-Time Optical Measurement of Displacements Using Subpixel Image Registration

Popis výsledku v původním jazyce

An open-source tool for a real-time measurement of relative displacements based on image registration is presented. The use of upsampled matrix-multiplication discrete Fourier transform and measurement limited to predefined points of interest by virtual extensometers allows high sampling frequencies with a subpixel accuracy. This solution was designed primarily for laboratory testing in order to eliminate the problem with inaccurate measurement of cross-head displacement due to compliance of testing frames and difficulties connected to the attachment of strain-gauges or extensometers. However, the portable hardware allows for outdoor applications in which remote monitoring of displacements and deformations is required. The accuracy of the system was assessed, and the software was successfully verified through experimental testing.

Název v anglickém jazyce

Real-Time Optical Measurement of Displacements Using Subpixel Image Registration

Popis výsledku anglicky

An open-source tool for a real-time measurement of relative displacements based on image registration is presented. The use of upsampled matrix-multiplication discrete Fourier transform and measurement limited to predefined points of interest by virtual extensometers allows high sampling frequencies with a subpixel accuracy. This solution was designed primarily for laboratory testing in order to eliminate the problem with inaccurate measurement of cross-head displacement due to compliance of testing frames and difficulties connected to the attachment of strain-gauges or extensometers. However, the portable hardware allows for outdoor applications in which remote monitoring of displacements and deformations is required. The accuracy of the system was assessed, and the software was successfully verified through experimental testing.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20205 - Automation and control systems

Projekt

<a href="/cs/project/TJ01000263" target="_blank" >TJ01000263: Využití obrazové analýzy pro geotechnické účely</a><br>

Návaznosti

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

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Experimental Techniques

ISSN

0732-8818

e-ISSN

1747-1567

Svazek periodika

43

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

9

Strana od-do

315-323

Kód UT WoS článku

000467239100007

EID výsledku v databázi Scopus

2-s2.0-85065387335