- Tytuł:
- Single-camera system for measuring paper deformations based on image analysis
- Autorzy:
-
Pełczyński, Paweł
Szewczyk, Włodzimierz
Bieńkowska, Maria - Powiązania:
- https://bibliotekanauki.pl/articles/1849045.pdf
- Data publikacji:
- 2021
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
digital image processing
characteristic point tracking
paper physical properties
deformation analysis
Poisson’s ratio - Opis:
- The article presents a new technique for measuring paper deformation in unidirectional tensile tests, based on recording and analysis of a series of specimen images. The proposed technique differs from the DIC-based deformation measurement in that the cross-correlation of image data has been replaced with linear filtering. For this purpose, a regular grid of markers is printed on the sample. Filtering the image creates local maxima in the places where markers occur. The developed algorithm finds their location with sub-pixel accuracy. Printing a grid of markers on tested paper and use of reference objects visible in the same image as the paper sample, freed from the need to mechanically connect the camera and the universal testing machine and from the necessity to electronically synchronize their work. The obtained deformation distributions and Poisson’s ratios are in accordance with the literature data which confirms the correctness of the developed measurement technique.
- Źródło:
-
Metrology and Measurement Systems; 2021, 28, 3; 509-522
0860-8229 - Pojawia się w:
- Metrology and Measurement Systems
- Dostawca treści:
- Biblioteka Nauki
Artykuł