A quantitative evaluation method of soil fissures based on image two-dimensional entropy

A quantitative evaluation, two-dimensional entropy technology, applied in the field of quantitative evaluation of soil fractures based on image two-dimensional entropy, can solve problems such as loss of fractal dimension, and achieve the effect of simple calculation process, good spatial characteristics and development conditions

Active Publication Date: 2018-12-18
TONGJI UNIV
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Problems solved by technology

This may make the calculated fractal dimension lose its original meaning

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  • A quantitative evaluation method of soil fissures based on image two-dimensional entropy
  • A quantitative evaluation method of soil fissures based on image two-dimensional entropy
  • A quantitative evaluation method of soil fissures based on image two-dimensional entropy

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[0037] The present invention will be further described below in conjunction with the accompanying drawings.

[0038] The method of the invention includes three stages: extraction of soil fissures, calculation of two-dimensional entropy of fissure images, and quantitative evaluation of soil fissures based on two-dimensional entropy.

[0039] The first stage is soil fissure extraction. Based on the color image of soil fissures taken by a digital camera, digital image processing technology is used to extract the fissures.

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Abstract

The invention relates to a quantitative evaluation method of soil fissures based on image two-dimensional entropy, comprising the following steps: 1) extracting dry shrinkage fissures, specifically comprising: 11) performing grayscale processing on the original color fissures picture to obtain the grayscale image of the fissures picture; 12) carrying out image segmentation on the gray-scale imageto obtain a fracture binary image; 2) calculating the two-dimensional entropy value of the fracture binary image; and 3) carrying out quantitative evaluation on the geometric characteristics of the soil fracture based on the two-dimensional entropy. Compared with the prior art, the invention has the advantage of small calculation amount and determinacy of the result.

Description

technical field [0001] The invention relates to the technical field of geotechnical engineering, in particular to a method for quantitatively evaluating soil cracks based on image two-dimensional entropy. Background technique [0002] Affected by surface evaporation, the soil surface often cracks due to dehydration and shrinkage. The appearance of cracks will affect the engineering properties of soil such as compressibility, strength and permeability. The geometric characteristics of the fracture network reflect the evolution law of the strain field in the process of soil dehydration to a certain extent. Therefore, quantitative analysis of the geometric shape of the fracture surface is of great significance to the study of the fracture development process, and provides an important research method for revealing the mechanism of fracture development. At the same time, it also lays the foundation for the prevention and treatment of engineering accidents such as slope instabi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T7/11G06T7/136
CPCG06T7/0002G06T2207/10024G06T2207/30184G06T7/11G06T7/136
Inventor 蔡奕蔡万贤石涛吴乔枫
Owner TONGJI UNIV
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