Erschienen:
Springer Science and Business Media LLC, 2021
Erschienen in:
Experiments in Fluids, 62 (2021) 9
Sprache:
Englisch
DOI:
10.1007/s00348-021-03285-6
ISSN:
0723-4864;
1432-1114
Entstehung:
Anmerkungen:
Beschreibung:
Abstract The use of electronic visual displays for background-oriented schlieren allows for the quick change of the reference images. In this study, we show that the quality of synthetic and background-oriented schlieren images can be improved by acquiring a set of images with different reference images and generating a median displacement field from it. To explore potential benefits, we studied different background changing strategies and their effect on the quality of the evaluation of the displacement field via artificial and experimental image distortions. Graphic abstract