Detail publikace

Amplitude measurement of small displacement using video magnification

ŘIČÁNEK, D.

Originální název

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

Video magnification algorithms show promising results when used to amplify small vibrations. Measuring these small vibrations is integral in modal analysis of an object and is usually done using specialized vibrometers or accelerometers. Computer vision (CV) systems fall short in this task as the magnitude of the vibrations decreases because of a small SNR (Signal-to-Noise Ratio). In this paper we try to further improve the accuracy of the CV approach by adding video magnification into the image pre-processing stage, allowing the algorithms to measure even imperceptibly small vibrations. For this purpose, we have gather ground truth data with a laser vibrometer in tandem with high speed camera footage of a metal cantilever beam, vibrating in its first mode, and have trained a convolutional neural network for regression.

Klíčová slova

EVM, phase-based, optical flow, PDV, ResNet18

Autoři

ŘIČÁNEK, D.

Vydáno

23. 4. 2024

Nakladatel

Brno University of Technology, Faculty of Electrical Engineering and Communication

Místo

Brno

ISBN

978-80-214-6230-4

Kniha

Proceedings I of the 30th Conference STUDENT EEICT 2024: Selected Papers

Edice

Strany od

212

Strany do

217

Strany počet

URL

https://www.eeict.cz/eeict_download/archiv/sborniky/EEICT_2024_sbornik_2.pdf

BibTex

@inproceedings{BUT188512,
  author="Dominik {Řičánek}",
  title="Amplitude measurement of small displacement using video magnification",
  booktitle="Proceedings I of the 30th Conference STUDENT EEICT 2024: Selected Papers",
  year="2024",
  series="1",
  pages="6",
  publisher="Brno University of Technology, Faculty of Electrical Engineering and Communication",
  address="Brno",
  doi="10.13164/eeict.2024.212",
  isbn="978-80-214-6230-4",
  url="https://www.eeict.cz/eeict_download/archiv/sborniky/EEICT_2024_sbornik_2.pdf"
}