Semi-automatic Detection of Rock Mass Discontinuity Trace Based on Image Processing

Zhan Wei; Zhang Yangsong

doi:10.3969/j.issn.1007-2993.2020.01.002

Volume 34 Issue 1

Jul. 2021

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Zhan Wei, Zhang Yangsong. Semi-automatic Detection of Rock Mass Discontinuity Trace Based on Image Processing[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2020, 34(1): 7-12,42. doi: 10.3969/j.issn.1007-2993.2020.01.002

Citation:

Zhan Wei, Zhang Yangsong. Semi-automatic Detection of Rock Mass Discontinuity Trace Based on Image Processing[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2020, 34(1): 7-12,42. doi: 10.3969/j.issn.1007-2993.2020.01.002

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Semi-automatic Detection of Rock Mass Discontinuity Trace Based on Image Processing

doi: 10.3969/j.issn.1007-2993.2020.01.002

School of Science, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China

Received Date: 2019-07-01
Available Online: 2021-07-10

Abstract

Abstract

A semi-automatic detection method of rock mass discontinuity trace based on image processing was presented.The basic ideas are as following:A small number of main crack control points which are difficult to identify are manually designated in the image,and then the image is divided into two parts,and edge detection is carried out respectively.Two segmented line pictures including discontinuity trace and fake edge are obtained.According to the principle of distance and angle,the segmented lines in the two images are connected iteratively.Finally,the results are superposed to get the complete fissure trace detection results.This method could reduce the interference between the primary and secondary fissures by detecting them separately,and ensure the integrity and correctness of the identification of the primary and secondary fissures with higher accuracy.
- rock mass discontinuity,
- edge detection,
- iterative connection,
- semi-automatic detection