Details
| Original language | English |
|---|---|
| Title of host publication | Recent Advances in Topography Research |
| Place of Publication | New York |
| Pages | 255-276 |
| Number of pages | 22 |
| Publication status | Published - 2013 |
Abstract
In this chapter a new kind of flexible micro fringe projection technique for topography and geometry determination of filigree side elements in internal carrier structures is introduced. The applied method is based on a combination of flexible endoscopy (fibres copy) and common fringe projection, which adds up the advantages of a freely positionable sensor head of a fiberscope with the possibility of fast, high resolution areal measurements. Special focus is laid on an increased depth of focus that can be generated by new light sources and a beam path optimized by simulation starting from the source to the image generation through image fibres and gradient index optics to a specimen and from there finishing in a camera for the acquisition of the geometry data. Tailored algorithms for structured light patterns and generation as well as fitted computations of the camera images will be presented that deal with the new challenges of decreased resolution that are caused by the image fibres. For a better understanding of the individual difficulties some applications are given that show where the certain described techniques improve the results of endoscopic measurements.
Keywords
- Endoscopy, Image fibre, Micro fringe projection, Structured light
ASJC Scopus subject areas
- Physics and Astronomy(all)
- General Physics and Astronomy
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Recent Advances in Topography Research. New York, 2013. p. 255-276.
Research output: Chapter in book/report/conference proceeding › Contribution to book/anthology › Research › peer review
}
TY - CHAP
T1 - A device for endoscopic measurements of forming tools with filigree side elements
AU - Ohrt, Christoph
AU - Matthias, Steffen
AU - Kästner, Markus
AU - Reithmeier, Eduard
PY - 2013
Y1 - 2013
N2 - In this chapter a new kind of flexible micro fringe projection technique for topography and geometry determination of filigree side elements in internal carrier structures is introduced. The applied method is based on a combination of flexible endoscopy (fibres copy) and common fringe projection, which adds up the advantages of a freely positionable sensor head of a fiberscope with the possibility of fast, high resolution areal measurements. Special focus is laid on an increased depth of focus that can be generated by new light sources and a beam path optimized by simulation starting from the source to the image generation through image fibres and gradient index optics to a specimen and from there finishing in a camera for the acquisition of the geometry data. Tailored algorithms for structured light patterns and generation as well as fitted computations of the camera images will be presented that deal with the new challenges of decreased resolution that are caused by the image fibres. For a better understanding of the individual difficulties some applications are given that show where the certain described techniques improve the results of endoscopic measurements.
AB - In this chapter a new kind of flexible micro fringe projection technique for topography and geometry determination of filigree side elements in internal carrier structures is introduced. The applied method is based on a combination of flexible endoscopy (fibres copy) and common fringe projection, which adds up the advantages of a freely positionable sensor head of a fiberscope with the possibility of fast, high resolution areal measurements. Special focus is laid on an increased depth of focus that can be generated by new light sources and a beam path optimized by simulation starting from the source to the image generation through image fibres and gradient index optics to a specimen and from there finishing in a camera for the acquisition of the geometry data. Tailored algorithms for structured light patterns and generation as well as fitted computations of the camera images will be presented that deal with the new challenges of decreased resolution that are caused by the image fibres. For a better understanding of the individual difficulties some applications are given that show where the certain described techniques improve the results of endoscopic measurements.
KW - Endoscopy
KW - Image fibre
KW - Micro fringe projection
KW - Structured light
UR - http://www.scopus.com/inward/record.url?scp=84895414388&partnerID=8YFLogxK
M3 - Contribution to book/anthology
AN - SCOPUS:84895414388
SN - 9781626188402
SP - 255
EP - 276
BT - Recent Advances in Topography Research
CY - New York
ER -