Veitch-Michaelis, J;
Tao, Y;
Walton, D;
Muller, J-P;
Crutchley, B;
Storey, J;
Paterson, C;
(2016)
Crack detection in "as-cast" steel using laser triangulation and machine learning.
In:
Proceedings of the 13th Conference on Computer and Robot Vision (CRV).
(pp. pp. 342-349).
IEEE: Victoria, BC, Canada.
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Abstract
We describe a high-accuracy inspection system designed to automatically detect cracks in "as-cast" steel slabs. Real-time slab inspection requires instrumentation capable of withstanding high temperatures above the steel surface as well as coping with the dirty and dusty environment present in a steel mill. Crack detection is also challenging due to the presence of oxidation scale on the slab surface. A bespoke laser triangulation system has been developed, providing images at 250 fps with a calibrated surface resolution of 97 μm from a 1m standoff distance. Cracks are detected using a combination of morphological detection and SVM classifier. Results are reported from laboratory testing and from extended trials at a production steel mill.
| Type: | Proceedings paper |
|---|---|
| Title: | Crack detection in "as-cast" steel using laser triangulation and machine learning |
| Event: | 13th Conference on Computer and Robot Vision (CRV) |
| Location: | Victoria, CANADA |
| Dates: | 01 June 2016 - 03 June 2016 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/CRV.2016.55 |
| Publisher version: | http://dx.doi.org/10.1109/CRV.2016.55 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Science & Technology, Technology, Robotics, laser triangulation, challenging environment, 3D reconstruction, crack detection, AUTOMATED VISUAL INSPECTION, SURFACE, SLABS, RECONSTRUCTION, CLASSIFIERS |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Space and Climate Physics |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10028424 |
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