Details
| Original language | English |
|---|---|
| Pages (from-to) | 439-449 |
| Number of pages | 11 |
| Journal | Advanced Optical Technologies |
| Volume | 5 |
| Issue number | 5-6 |
| Publication status | Published - 9 Nov 2016 |
Abstract
Fringe projection profilometry is an established technique for capturing three-dimensional (3-D)-geometry data with high-point densities in short time. By combining fringe projection with endoscopy techniques, it is possible to perform inline inspection of industrial manufacturing processes. A new fringe projection system is presented, which uses flexible image fiber bundles to achieve versatile positioning of a compact sensor head. When measuring specimens with highly varying reflectivity, such as technical surfaces on tool geometries, measurement errors increase especially due to the crosstalk between individual fibers in the bundle. A detailed analysis of the transmission properties of the utilized fiber bundles is presented. It is shown that aliasing is avoided due to the non-regular grid structure of a bundle. Different techniques are demonstrated to reduce the effect of crosstalk on the phase evaluation. Measurements of highly reflective technical surfaces with different geometrical properties are shown.
Keywords
- crosstalk, fringe projection, heterodyne, image fibers, modeling
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
- Physics and Astronomy(all)
- Instrumentation
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In: Advanced Optical Technologies, Vol. 5, No. 5-6, 09.11.2016, p. 439-449.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Modeling of imaging fiber bundles and adapted signal processing for fringe projection
AU - Matthias, Steffen
AU - Kästner, Markus
AU - Reithmeier, Eduard
PY - 2016/11/9
Y1 - 2016/11/9
N2 - Fringe projection profilometry is an established technique for capturing three-dimensional (3-D)-geometry data with high-point densities in short time. By combining fringe projection with endoscopy techniques, it is possible to perform inline inspection of industrial manufacturing processes. A new fringe projection system is presented, which uses flexible image fiber bundles to achieve versatile positioning of a compact sensor head. When measuring specimens with highly varying reflectivity, such as technical surfaces on tool geometries, measurement errors increase especially due to the crosstalk between individual fibers in the bundle. A detailed analysis of the transmission properties of the utilized fiber bundles is presented. It is shown that aliasing is avoided due to the non-regular grid structure of a bundle. Different techniques are demonstrated to reduce the effect of crosstalk on the phase evaluation. Measurements of highly reflective technical surfaces with different geometrical properties are shown.
AB - Fringe projection profilometry is an established technique for capturing three-dimensional (3-D)-geometry data with high-point densities in short time. By combining fringe projection with endoscopy techniques, it is possible to perform inline inspection of industrial manufacturing processes. A new fringe projection system is presented, which uses flexible image fiber bundles to achieve versatile positioning of a compact sensor head. When measuring specimens with highly varying reflectivity, such as technical surfaces on tool geometries, measurement errors increase especially due to the crosstalk between individual fibers in the bundle. A detailed analysis of the transmission properties of the utilized fiber bundles is presented. It is shown that aliasing is avoided due to the non-regular grid structure of a bundle. Different techniques are demonstrated to reduce the effect of crosstalk on the phase evaluation. Measurements of highly reflective technical surfaces with different geometrical properties are shown.
KW - crosstalk
KW - fringe projection
KW - heterodyne
KW - image fibers
KW - modeling
UR - http://www.scopus.com/inward/record.url?scp=85009250571&partnerID=8YFLogxK
U2 - 10.1515/aot-2016-0050
DO - 10.1515/aot-2016-0050
M3 - Article
AN - SCOPUS:85009250571
VL - 5
SP - 439
EP - 449
JO - Advanced Optical Technologies
JF - Advanced Optical Technologies
SN - 2192-8576
IS - 5-6
ER -