A method and system for three-dimensional reconstruction of blast furnace charge surface based on monocular imaging

A blast furnace material surface, three-dimensional reconstruction technology, applied in image analysis, image enhancement, image data processing and other directions, can solve the problems of few feature points, poor blast furnace material surface model accuracy, large errors, etc., to achieve the effect of improving model accuracy

Active Publication Date: 2020-04-24
CENT SOUTH UNIV
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Problems solved by technology

[0005] The method and system for three-dimensional reconstruction of the blast furnace charge level based on monocular imaging provided by the present invention solves the problem of the lack of feature points and large errors when fitting the blast furnace charge level model based on the existing charge level data. Technical issues with poor surface model accuracy

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  • A method and system for three-dimensional reconstruction of blast furnace charge surface based on monocular imaging
  • A method and system for three-dimensional reconstruction of blast furnace charge surface based on monocular imaging
  • A method and system for three-dimensional reconstruction of blast furnace charge surface based on monocular imaging

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Embodiment 1

[0054] refer to figure 2 , the method for three-dimensional reconstruction of blast furnace charge surface based on monocular imaging provided in Embodiment 1 of the present invention includes:

[0055] Step S101, based on the imaging mechanism of the camera, a geometric model of the material surface depth and the material surface height of the material surface image is established;

[0056] Step S102, obtaining the depth feature of the material surface image according to the texture and blur of the material surface image;

[0057] Step S103, according to the depth feature and the geometric model of the material level image, the material level height of the material level image is obtained;

[0058] Step S104, according to the height of the material level, the three-dimensional blast furnace material level is obtained by fitting.

[0059] The three-dimensional reconstruction method of the blast furnace material level based on monocular imaging provided by the embodiment of ...

Embodiment 2

[0062] refer to image 3 , the method for three-dimensional reconstruction of blast furnace charge surface based on monocular imaging provided in Embodiment 2 of the present invention includes:

[0063] Step S201, based on the imaging mechanism of the camera, a geometric model of the material level depth and material level height of the material level image is established.

[0064] Specifically, in the embodiment of the present invention, based on the camera imaging mechanism, establishing a geometric model of the material level depth and material level height of the material level image includes:

[0065] The material surface image is equally divided into M*N sub-material surface images of the same size, wherein M and N are integers greater than 1;

[0066] Based on the camera imaging mechanism, the average material surface height of each sub-surface image is obtained as:

[0067]

[0068] Among them, h j,i is the average material surface height of the (j,i)th sub-surfa...

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Abstract

The invention discloses a method and a system for three-dimensional reconstruction of blast furnace charge level based on monocular imaging, based on the imaging mechanism of camera, the geometrical model of the depth and height of the material surface is established, according to the texture and blur of the material surface image, obtaining the depth feature of the material surface image, according to the depth feature and geometric model of the material surface image, obtaining the material height of the material level image, in accordance with that height of the material surface, 3-D blastfurnace burden level is obtain by fitting, at present, when that blast furnace burden level model is fit based on the burden level data, the method solve the problem that when the blast furnace burdenlevel model is fitted based on the burden level data, as that characteristic point are few and the error is large, Because of the poor accuracy of the blast furnace charge level model, a lot of accurate data of the charge level height can be obtained by calculating the depth characteristics of the charge level image from the angle of the photographed charge level image, which greatly improves theaccuracy of the three-dimensional blast furnace charge level model.

Description

technical field [0001] The invention mainly relates to the technical field of blast furnace charge level detection, in particular to a method and system for three-dimensional reconstruction of blast furnace charge level based on monocular imaging. Background technique [0002] In the iron and steel industry, the blast furnace is the most important part of the ironmaking system, and it is also the part with the highest energy consumption and emissions. Its direct and related energy and emissions account for 70% and 90% of the total value of the iron and steel industry, respectively. Blast furnace charge surface is an object that can directly reflect the production status in the blast furnace. Its three-dimensional information plays an important role in assisting furnace roof distribution, thereby reducing energy consumption, reducing emissions, avoiding deterioration of furnace conditions, and improving production efficiency. The three-dimensional information of blast furnace ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T17/10G06T7/529G06T7/41
CPCG06T7/41G06T7/529G06T17/10G06T2200/08G06T2207/10068
Inventor 蒋朝辉肖鹏陈致蓬桂卫华谢永芳阳春华张海峰
Owner CENT SOUTH UNIV
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