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The potential of measuring spatial operating deflection shapes from still images using spectral optical flow imaging [Elektronski vir]Gorjup, Domen, 1992- ; Slavič, Janko, 1978- ; Boltežar, MihaThe field of view of the well established 3D DIC method is often limited to a single face of the object, observed by the stereo pair. For linear, time-invariant mechanical systems, 3D operating ... deflection shapes can be measured using a single, moving camera using frequency-domain triangulation. By moving the camera around the object of known geometry, the measurement field of view is arbitrarily extended. The image-displacements, input to the frequency-domain triangulation procedure, are normally acquired using a high-speed camera. The recently introduced spectral optical flow imaging method presents a possible alternative to this image acquisition step, as it is capable of measuring operating deflection shapes in the image plane using only a still camera together with a light source of harmonic intensity. In this paper, the possibility of using the spectral optical flow imaging technique as a displacement measurement method for 3D operating deflection shape identification with frequency-domain triangulation is explored.Source: Proceedings of ISMA2020, International Conference on Noise and Vibration Engineering, [and] USD2020, International Conference on Uncertainty in Structural Dynamics [Elektronski vir] : Leuven, 7 to 9 September, 2020 (Str. 2253-2260)Type of material - conference contributionPublish date - 2020Language - englishCOBISS.SI-ID - 35547651
Author
Gorjup, Domen, 1992- |
Slavič, Janko, 1978- |
Boltežar, Miha
Topics
slikanje spektralnih komponent optičnega toka |
meritve polnega polja pomikov |
ena kamera |
obratovalne oblike |
geometrija več pogledov |
frekvenčna domena |
triangulacija |
spectral optical flow imaging |
full-field displacement measurement |
single-camera |
spatial operating-deflection-shapes |
multiview geometry |
frequency domain |
triangulation
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Database name | Field | Year |
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Gorjup, Domen, 1992- | 39358 |
Slavič, Janko, 1978- | 23010 |
Boltežar, Miha | 02034 |
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