Volume 45 Issue 2
Apr.  2017
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XIA Hongxin, QU Zhenghui, LU Chengang, XUE Zhiwen. Automatic recognition and information extraction of two-dimensional micro cracks in cataclastic coal[J]. COAL GEOLOGY & EXPLORATION, 2017, 45(2): 75-79. DOI: 10.3969/j.issn.1001-1986.2017.02.013
Citation: XIA Hongxin, QU Zhenghui, LU Chengang, XUE Zhiwen. Automatic recognition and information extraction of two-dimensional micro cracks in cataclastic coal[J]. COAL GEOLOGY & EXPLORATION, 2017, 45(2): 75-79. DOI: 10.3969/j.issn.1001-1986.2017.02.013
shu

Automatic recognition and information extraction of two-dimensional micro cracks in cataclastic coal

  • 1. School of Resources and Earth Science, China University of Mining and Technology, Xuzhou 221116, China;

  • 2. Key Laboratory of CBM Resource and Reservoir-generating Process, China Ministry of Education, Xuzhou 221116, China;

  • 3. Institute of Petroleum Engineering, China University of Petroleum, Beijing 102200, China

Funds: 

The Key Program of the National Natural Science Foundation of China(41430317)

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  • Received Date: December 26, 2015
  • Published Date: April 24, 2017
    Graphical Abstract
    • Abstract
  • The quantitative analysis of two-dimensional cracks in cataclastic coal is important for the effective prediction of the permeability and the strength of coal mass of coal resevoir in structurally complicated areas. Aiming at the bitmaps of two-dimensional micro cracks in cataclastical coal with different deformation, on the basis of MATLAB image processing platform, through binaryzation, noise reduction and restoration, programming realized automatic recognition of cracks, eliminated succesfully the disturbance of stria and mottle unequal in size, the recognized cracks tended to be accordant to the original cracks. Then on the basis of crack partitioning, the automatic extraction of parameters such as area, length, mean width and surfacial crack rate was realized. The crack information taken from two bitmaps was compared, the result was accordant to the visual development degree of cracks.
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    • References (12)
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