Publication detail
Enhancing the accuracy of forging measurement using silhouettes in images
HURNÍK, J. ZATOČILOVÁ, A. KOUTNÝ, D. PALOUŠEK, D.
English title
Enhancing the accuracy of forging measurement using silhouettes in images
Type
journal article in Web of Science
Language
en
Original abstract
In this study, a new passive camera system for heavy cylindrical forging measurement, based on silhouettes in images, is developed. New methods for making such a system more resistant to the negative effects of the industrial environment have been proposed. This includes weighted edge filtering based on complementary information about the edge quality in an image. The recorded measurement median errors were +/- 0.12 mm and +/- 0.14 mm. Moreover, the 95% confidence intervals were +/- 0.5 mm and +/- 1 mm for the forging axis and diameter measurements, respectively. Both results were achieved in a measurement volume of 6 x 6 x 2 m during the measurement of glowing hot forgings in industrial conditions. The results surpass those of the state-of-the-art method, mainly in the case of axis straightness measurement, by approximately 50%. The measurement is fast, and it provides feedback about the axis straightness for its subsequent correction.
English abstract
In this study, a new passive camera system for heavy cylindrical forging measurement, based on silhouettes in images, is developed. New methods for making such a system more resistant to the negative effects of the industrial environment have been proposed. This includes weighted edge filtering based on complementary information about the edge quality in an image. The recorded measurement median errors were +/- 0.12 mm and +/- 0.14 mm. Moreover, the 95% confidence intervals were +/- 0.5 mm and +/- 1 mm for the forging axis and diameter measurements, respectively. Both results were achieved in a measurement volume of 6 x 6 x 2 m during the measurement of glowing hot forgings in industrial conditions. The results surpass those of the state-of-the-art method, mainly in the case of axis straightness measurement, by approximately 50%. The measurement is fast, and it provides feedback about the axis straightness for its subsequent correction.
Keywords in English
Forging; Measurement; Edge detection; Silhouettes; Axis straightness; Image analysis
Released
15.05.2022
Publisher
ELSEVIER SCI LTD
Location
OXFORD
ISSN
0263-2241
Volume
194
Number
-
Pages from–to
111059–111059
Pages count
12
BIBTEX
@article{BUT177515,
author="Jakub {Hurník} and Aneta {Zatočilová} and Daniel {Koutný} and David {Paloušek},
title="Enhancing the accuracy of forging measurement using silhouettes in images",
year="2022",
volume="194",
number="-",
month="May",
pages="111059--111059",
publisher="ELSEVIER SCI LTD",
address="OXFORD",
issn="0263-2241"
}