Publication detail

Photogrammetry for optical metrology of parts manufactured by additive manufacturing

SEMANČÍK, A. HYNEK, J. LUKAČOVIČ, S. KOUTECKÝ, T.

English title

Photogrammetry for optical metrology of parts manufactured by additive manufacturing

Type

conference paper

Language

en

Original abstract

The aim of this paper was to test the suitability of using photogrammetry for metal additively manufactured parts with respect to metrology applications. Another aim was to test the influence of the chosen parameters on the quality indicators of the measurement data and the suitability of using single and stereo camera setups. The parameters of the measurement system whose influence was assessed were the exposure time, number and resolution of images taken. The individual measurements were evaluated in terms of the computational complexity, number of points obtained, part coverage ratio and the standard deviation of the distances of all points from the surface of the reference model. By comparing the results, a matrix of optimal parameters for the given part types was created and further trends describing the influence of individual parameters on the results were observed. The experimental comparison performed shows the possibilities of photogrammetric measurements, gives an idea of the appropriate parameters settings and has also shown that photogrammetry can be a competitor to fringe projection scanning of metal additively manufactured parts. The main drawback of this method is still the computational time and the need for a distinctive surface texture.

English abstract

The aim of this paper was to test the suitability of using photogrammetry for metal additively manufactured parts with respect to metrology applications. Another aim was to test the influence of the chosen parameters on the quality indicators of the measurement data and the suitability of using single and stereo camera setups. The parameters of the measurement system whose influence was assessed were the exposure time, number and resolution of images taken. The individual measurements were evaluated in terms of the computational complexity, number of points obtained, part coverage ratio and the standard deviation of the distances of all points from the surface of the reference model. By comparing the results, a matrix of optimal parameters for the given part types was created and further trends describing the influence of individual parameters on the results were observed. The experimental comparison performed shows the possibilities of photogrammetric measurements, gives an idea of the appropriate parameters settings and has also shown that photogrammetry can be a competitor to fringe projection scanning of metal additively manufactured parts. The main drawback of this method is still the computational time and the need for a distinctive surface texture.

Keywords in English

photogrammetry, metal additive manufacturing, optical metrology, single and stereo camera, performance indicators, exposure time

Released

15.08.2023

Publisher

Society of Photo-Optical Instrumentation Engineers (SPIE)

Location

Munich, Germany

ISSN

0277-786X

Book

Proc. SPIE 12618, Optical Measurement Systems for Industrial Inspection XIII

Volume

12680

Pages from–to

126180K-1–126180K-14

Pages count

14

BIBTEX


@inproceedings{BUT184464,
  author="Adam {Semančík} and Jakub {Hynek} and Samuel {Lukačovič} and Tomáš {Koutecký},
  title="Photogrammetry for optical metrology of parts manufactured by additive manufacturing",
  booktitle="Proc. SPIE 12618, Optical Measurement Systems for Industrial Inspection XIII",
  year="2023",
  volume="12680",
  month="August",
  pages="126180K-1--126180K-14",
  publisher="Society of Photo-Optical Instrumentation Engineers (SPIE)",
  address="Munich, Germany",
  issn="0277-786X"
}