Research on coal-bed image fractures identification based on fracture shape characteristics
LIU Yong
CUI Hongqing
Abstract：In view of problems that existing coal-bed image fractures identification method does not take good account of shape characteristics of the fractures or overall information of the fractures is not well obtained,by analyzing coal-bed image and shape characteristics of the fractures in binary image under different gray thresholds,determination coefficient of the coal-bed fractures was defined,and region's length,width and the ratio of length to width in the coal-bed binary image were defined as shape parameters.At the same time,a method of the coal-bed image fractures identification based on fracture shape characteristics was proposed.Under condition of the given shape parameters,travel a given gray scale threshold range and identify fracture regions in every coal-bed binary image,then merge all the identified fracture regions as the last coal-bed fractures identification result.Finally,an example was given to demonstrate effectiveness of the method.It is concluded that information of the coal-bed image fractures can be acquired to the maximum extent by traveling a certain gray scale threshold range and identify the coal-bed image fractures,and it can effectively improve accuracy of the coal-bed fracture identification by selecting reasonable thresholds of the shape parameters of the fracture determining coefficient.
Keywords：coal-bed fracturecoal-bed imagefracture identificationfracture shape characteristicsdetermination coefficientgray scale threshold
Publication Date：2017-10-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 59-64 )