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Tsallis threshold analysis of digital speckle patterns generated by rough surfaces

Author

Listed:
  • Soares, H.C.
  • Meireles, J.B.
  • Castro, A.O.
  • Huguenin, J.A.O.
  • Schmidt, A.G.M.
  • da Silva, L.

Abstract

In this work we report on a study of entropic threshold of digital speckle patterns images produced by rough surfaces using Tsallis entropy. The speckle pattern images were obtained in the diffraction plane at the normal direction and they are the outcome of the incidence of a laser beam in the rough metallic surfaces. The speckle pattern images were segmented in order to verify the sensitivity of the optimal Tsallis entropic threshold value as a function of the surface roughness. We show that the surface roughness can be sensed and tuned by this method.

Suggested Citation

  • 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.
    • Handle: RePEc:eee:phsmap:v:432:y:2015:i:c:p:1-8
    DOI: 10.1016/j.physa.2015.02.100
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    References listed on IDEAS

    as
    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. Kilic, Ilker & Kayacan, Ozhan, 2012. "Generalized ICM for image segmentation based on Tsallis statistics," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 391(20), pages 4899-4908.
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    Cited by:

    1. 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).
    2. 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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