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  4. A New Sensor System for Accurate 3D Surface Measurements and Modeling of Underwater Objects
 
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2022
Journal Article
Titel

A New Sensor System for Accurate 3D Surface Measurements and Modeling of Underwater Objects

Abstract
A new underwater 3D scanning device based on structured illumination and designed for continuous capture of object data in motion for deep sea inspection applications is introduced. The sensor permanently captures 3D data of the inspected surface and generates a 3D surface model in real time. Sensor velocities up to 0.7 m/s are directly compensated while capturing camera images for the 3D reconstruction pipeline. The accuracy results of static measurements of special specimens in a water basin with clear water show the high accuracy potential of the scanner in the sub-millimeter range. Measurement examples with a moving sensor show the significance of the proposed motion compensation and the ability to generate a 3D model by merging individual scans. Future application tests in offshore environments will show the practical potential of the sensor for the desired inspection tasks.
Author(s)
Bräuer-Burchardt, Christian
Fraunhofer-Institut für Angewandte Optik und Feinmechanik IOF
Munkelt, Christoph
Fraunhofer-Institut für Angewandte Optik und Feinmechanik IOF
Bleier, Michael
Julius-Maximilians-Universität Würzburg
Heinze, Matthias
Fraunhofer-Institut für Angewandte Optik und Feinmechanik IOF
Kühmstedt, Peter
Fraunhofer-Institut für Angewandte Optik und Feinmechanik IOF
Gebhart, Ingo
Fraunhofer-Institut für Angewandte Optik und Feinmechanik IOF
Notni, Gunther
Fraunhofer-Institut für Angewandte Optik und Feinmechanik IOF
Zeitschrift
Applied Sciences
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DOI
10.3390/app12094139
Language
English
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Fraunhofer-Institut für Angewandte Optik und Feinmechanik IOF
Tags
  • 3D model generation

  • motion compensation

  • optical underwater 3D...

  • structured illuminati...

  • high-accuracy 3D meas...

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