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Monitoring defects of a moving metallic surface through Tsallis entropic segmentation

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Listed:
  • Dias, M.R.B.
  • Junior, A.O. Castro
  • Dias, C.P.
  • de Carvalho, S.A.
  • Huguenin, J.A.O.
  • da Silva, L.

Abstract

Speckle patterns can be generated by the scattering of a laser light in a rough surface. Digital images of speckle patterns can be related with surface roughness. In this paper the Tsallis entropy was used to determine the threshold of the entropic segmentation on a digital image of speckle pattern. We show that it is a powerful tool to discern defects, which can be inferred as roughness variation, in a moving metallic sample. Furthermore, we investigated the results yielded by two laser wavelengths in order to verify the influence of this parameter.

Suggested Citation

  • Dias, M.R.B. & Junior, A.O. Castro & Dias, C.P. & de Carvalho, S.A. & Huguenin, J.A.O. & da Silva, L., 2019. "Monitoring defects of a moving metallic surface through Tsallis entropic segmentation," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 534(C).
    • Handle: RePEc:eee:phsmap:v:534:y:2019:i:c:s0378437119312610
    DOI: 10.1016/j.physa.2019.122175
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    References listed on IDEAS

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    1. Corrêa, R.D. & Meireles, J.B. & Huguenin, J.A.O. & Caetano, D.P. & da Silva, L., 2013. "Fractal structure of digital speckle patterns produced by rough surfaces," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 392(4), pages 869-874.
    2. Soares, H.C. & Meireles, J.B. & Castro, A.O. & Huguenin, J.A.O. & Schmidt, A.G.M. & da Silva, L., 2015. "Tsallis threshold analysis of digital speckle patterns generated by rough surfaces," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 432(C), pages 1-8.
    3. Soares, H.C. & da Silva, L. & Lobão, D.C. & Caetano, D.P. & Huguenin, J.A.O., 2013. "Hurst exponent analysis of moving metallic surfaces," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 392(21), pages 5307-5312.
    4. Dias, M.R.B. & Dornelas, D. & Balthazar, W.F. & Huguenin, J.A.O. & da Silva, L., 2017. "Lacunarity study of speckle patterns produced by rough surfaces," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 486(C), pages 328-336.
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    Cited by:

    1. Ramezani, Zahra & Pourdarvish, Ahmad, 2021. "Transfer learning using Tsallis entropy: An application to Gravity Spy," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 561(C).

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