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has been cited by the following article:

• TITLE: Porosity Analysis Based on CT Images of Coal Under Uniaxial Loading

  AUTHORS: Lingtao Mao, Peng Shi, Hui Tu, Liqian An, Yang Ju, Nai Hao

  KEYWORDS: Porosity Analysis; Coal Sample; ICT Image; Surface Porosity; Voxel Porosity; Uniaxial Loading

  JOURNAL NAME: Advances in Computed Tomography, Vol.1 No.2, September 18, 2012

  ABSTRACT: According to the character of CT image, surface porosity and voxel porosity are defined from pixel and voxel scale respectively. Digital Terrain Model (DTM) method is applied to calculate the surface porosity, and the method of voxel porosity is also presented based on Industrial CT grey image. With proposed methods, CT images of coal under differ-ent uniaxial loading are analyzed, and the relation curves between two kinds of porosity and stress separately are shown. All of these porosities reflect inner damage of coal. The surface porosity shows the pore with pixel scale, and voxel porosity denotes the pore inner pixel. The voxel porosity reflects the character of CT image better.