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Long term optical monitoring technique of displacement fields based on ArUco markers

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F22%3A00560720" target="_blank" >RIV/68378297:_____/22:00560720 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Long term optical monitoring technique of displacement fields based on ArUco markers

  • Original language description

    In structural engineering it is often needed to measure tiny displacements of parts of the structure extremely precisely. For such a purpose it is often needed to use some type of sensor attached to the surface of the structure. This paper presents a new technique which simply uses computer vision libraries to measure displacement of markers originally developed for robotics. Such analysis can be under specific circumstances (2D planar movement) valid if we compare two images taken at different times with the same camera. Main advantage of this method is simplicity of use and low cost of markers, which can be printed in a standard office laser printer. The resolution (error) can be for standard cameras around 0.1 pixel. The method is especially developed for research of timber frames/joints behavior in real structures, because displacements of joints in creep or under load can reach an amplitude which is perfectly detectable by this method.

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

  • OECD FORD branch

    20101 - Civil engineering

Result continuities

  • Project

    <a href="/en/project/GA21-29389S" target="_blank" >GA21-29389S: Experimental and numerical assessment of the bearing capacity of notches in timber beams at arbitrary locations using LEFM</a><br>

  • Continuities

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

Others

  • Publication year

    2022

  • Confidentiality

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

Data specific for result type

  • Article name in the collection

    Proceedings of the SHATIS 2022 – 6th International conference on structural health assessment of timber structures

  • ISBN

    978-80-86246-54-3

  • ISSN

  • e-ISSN

  • Number of pages

    5

  • Pages from-to

    145-149

  • Publisher name

    Institute of Theoretical and Applied Mechanics

  • Place of publication

    Prague

  • Event location

    Praha

  • Event date

    Sep 7, 2022

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article