Název: Long term optical monitoring technique of displacement fields based on ArUco markers
Autoři: Kunecký, Jiří
Typ dokumentu: Příspěvky z konference
Konference/Akce: SHATIS 22. International conference on structural health assessment of timber structures /6./, Praha (CZ), 20220907
Rok: 2022
Jazyk: eng
Abstrakt: 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.
Klíčová slova: ArUco markers; displacement measurement; long-term monitoring
Číslo projektu: GA21-29389S (CEP)
Poskytovatel projektu: GA ČR
Zdrojový dokument: Proceedings of the SHATIS 2022 – 6th International conference on structural health assessment of timber structures, ISBN 978-80-86246-54-3

Instituce: Ústav teoretické a aplikované mechaniky AV ČR (web)
Informace o dostupnosti dokumentu: Dokument je dostupný v příslušném ústavu Akademie věd ČR.
Původní záznam: https://hdl.handle.net/11104/0333573

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-508693


Záznam je zařazen do těchto sbírek:
Věda a výzkum > AV ČR > Ústav teoretické a aplikované mechaniky
Konferenční materiály > Příspěvky z konference