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Browsing by Subject "Triangulation"

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2D refractive index field measurements in air in different pressure scenarios

Beermann, Rüdiger; Quentin, Lorenz; Reithmeier, Eduard; Kästner, Markus (Bellingham, Wash. : SPIE, 2018)

The optical geometry characterization of wrought hot components can help to quantify material distortion effects during air-cooling. The component's shrinkage behavior is affected by inhomogeneous heat dissipation due to ...
Development of an edge sensor based on polyview optics and laser triangulation principle

Li, Yinan; Bossmeyer, Hagen; Kästner, Markus; Reithmeier, Eduard (Bellingham, Wash. : SPIE, 2016)

Common 2D laser line triangulation sensors allow a 2D profile measurement in a single line. To scan samples with great curved surfaces like edges, a single laser line triangulation sensor is insufficient. To measure the ...
DMC practical experience and accuracy assessment

Madani, M.; Dörstel, C.; Heipke, C.; Jacobsen, K. (Göttingen : Copernicus GmbH, 2004)

Accuracy of digital image data is expected to be better or at least the same as for analogue images. Since Z/I introduced its Digital Mapping Camera (DMC) into the market in early 2003, multiple projects have successfully ...
Does work-related multi-locality reduce civic involvement? Evidence for Germany based on quantitative and qualitative data

Rüger, Heiko; Greinke, Lena; Skora, Thomas (Munich, Germany : oekom verlag, 2022)

Der Beitrag fußt auf einer Untersuchung über den Einfluss der Aufnahme einer erwerbsbedingten multilokalen Lebensweise auf das zivilgesellschaftliche Engagement anhand quantitativer und qualitativer Daten mittels einer ...
Quantitative 3d reconstruction from scanning electron microscope images based on affine camera models

Töberg, Stefan; Reithmeier, Eduard (Basel : MDPI, 2020)

Scanning electron microscopes (SEMs) are versatile imaging devices for the micro-and nanoscale that find application in various disciplines such as the characterization of biological, mineral or mechanical specimen. Even ...
A raspberry pi based portable endoscopic 3D measurement system

Schlobohm, Jochen; Pösch, Andreas; Reithmeier, Eduard (Basel : MDPI AG, 2016)

Geometry measurements are very important to monitor a machine part’s health and performance. Optical measurement system have several advantages for the acquisition of a parts geometry: measurement speed, precision, point ...
Structured light sensor with telecentric stereo camera pair for measurements through vacuum windows

Beermann, Rüdiger; Quentin, Lorenz; Kästner, Markus; Reithmeier, Eduard (Bellingham, Wash. : SPIE, 2019)

Within the Collaborative Research Centre 1153 Tailored Forming a process chain is being developed to manufacture hybrid high performance components made from different materials. The optical geometry characterization of ...
Subpolygons in conway-coxeter frieze patterns

Cuntz, Michael; Holm, Thorsten (Saint-Martin d’Hères : Centre Mersenne, 2021)

Friezes with coefficients are maps assigning numbers to the edges and diagonals of a regular polygon such that all Ptolemy relations for crossing diagonals are satisfied. Among these, the classic Conway-Coxeter friezes are ...

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Browsing by Subject "Triangulation"

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