Quantitative evaluation device and method for pore structure characteristics of two-dimensional porous medium
A quantitative evaluation, porous media technology, applied in image data processing, instrumentation, calculation, etc., can solve problems such as slow calculation speed and long calculation time
Pending Publication Date: 2020-04-10
CHINA UNIV OF GEOSCIENCES (WUHAN)
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[0004] However, the inventors of the present invention have found that the prior art has at least the following technical problems when performing quantitative evaluation of the pore structure characteristics of two-dimensional porous media: (1) lack of a device and method that can process CT images of porous media image, and then solve the fractal dimension, phase progression and missing items of the two-dimensional porous media to quantitatively characterize and evaluate the porous media; (2) the existing technology is slow in calculating the fractal dimension and the existence of missing items, and the calculation time is long Shortcomings
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[0088] In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the specific implementation, structure, features and effects of the application according to the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments. . In the following description, different "one embodiment" or "embodiment" do not necessarily refer to the same embodiment. Furthermore, the particular features, structures, or characteristics of one or more embodiments may be combined in any suitable manner.
[0089] On the one hand, an embodiment of the present invention provides a quantitative evaluation device for the pore structure characteristics of a two-dimensional porous medium (herein, the quantitative evaluation device is a computer software), wherein the quantitative evaluation device includes:
[0090] The image acquisition module is used to acquire the CT...
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The invention relates to a quantitative evaluation device and method for pore structure characteristics of a two-dimensional porous medium. According to a mainly adopted technical scheme, the quantitative evaluation device for the pore structure characteristics of the two-dimensional porous medium comprises an image processing module, a binary image processing module and a calculation module, wherein the image processing module converts the CT color image of the to-be-quantitatively-evaluated porous medium into a CT grayscale image; the binary image processing module converts the CT grayscaleimage into a CT binary image, and when the absolute value of the difference value between the porosity of the CT binary image and the porosity of the porous medium is smaller than 0.01, the CT binaryimage is a target CT binary image; and the calculation module is used for calculating the fractal dimension, the missing item and the leading phase of the target area in the target CT binary image. The method is mainly used for solving the fractal dimension, the leading phase and the lacuna of the two-dimensional porous medium by utilizing the CT color image of the porous structure so as to quantitatively characterize and evaluate the pore structure of the porous medium.
Description
technical field [0001] The invention relates to the technical field of porous media, in particular to a quantitative evaluation device and method for pore structure characteristics of two-dimensional porous media. Background technique [0002] Porous media refers to solid media that contain pores inside. Porous media can also be defined in this way, that is, the media or materials containing regular or arbitrary shapes, connected or disconnected pores or caves and their solid media are called porous media. Porous media exist everywhere, such as soil, earth crust, sand, cotton, wood, bone, steel, cement, ceramics, computer and mobile phone chips, human and animal tissues and organs, plants, etc.; it is no exaggeration to say that there is no Without porous media, there would be no animals, no plants, no human beings, and no our world. Therefore, the study of porous media is closely related to the healthy survival of human beings, animals and plants, national security, and t...
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IPC IPC(8): G06T7/00G06T7/136
CPCG06T7/001G06T7/136G06T2207/10081
Inventor 蔡建超夏宇轩全世锜韦伟刘洋田海涛
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)