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Proceedings Article

Illumination control in view of dynamic (re)planning of 3D reconstruction tasks

[+] Author Affiliations
Abdelkrim Belhaoua, Ernest Hirsch

Lab. des Sciences de l'Image, de l'Informatique et de la Télédétection, CNRS, Univ. de Strasbourg (France)

Sophie Kohler

Univ. de Haute Alsace (France)

Proc. SPIE 8000, Tenth International Conference on Quality Control by Artificial Vision, 800002 (July 12, 2011); doi:10.1117/12.889322
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From Conference Volume 8000

  • Tenth International Conference on Quality Control by Artificial Vision
  • Jean-Charles Pinoli; Johan Debayle; Yann Gavet; Frédéric Gruy; Claude Lambert
  • Saint-Etienne, France | June 28, 2011

abstract

Accuracy of 3D vision-based reconstruction tasks depends both on the complexity of analyzed objects and on good viewing / illumination conditions, ensuring image quality and minimizing consequently measurement errors after processing of acquired images. In this contribution, as a complement to an autonomous cognitive vision system automating 3D reconstruction and using Situation Graph Trees (SGTs) as a planning / control tool, these graphs are optimized in two steps. The first (off-line) step addresses the placement of lighting sources, with the aim to find positions minimizing processing errors during the subsequent reconstruction steps. In the second step, on-line application of the SGT-based control module focuses on adjustment of illumination conditions (e. g., intensity), leading eventually to process re-planning, and enabling further to extract optimally the contour data required for 3D reconstruction. The whole illumination optimization procedure has been fully automated and included in the dynamic (re-)planning tool for visionbased reconstruction tasks, e. g. in view of quality control applications.

© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

Abdelkrim Belhaoua ; Sophie Kohler and Ernest Hirsch
"Illumination control in view of dynamic (re)planning of 3D reconstruction tasks", Proc. SPIE 8000, Tenth International Conference on Quality Control by Artificial Vision, 800002 (July 12, 2011); doi:10.1117/12.889322; http://dx.doi.org/10.1117/12.889322


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