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Texture feature measurement method based on particle roughness

A measurement method and texture feature technology, which is applied in the field of texture feature measurement, can solve the problems of not considering the surface particles of bubbles, etc., and achieve the effects of overcoming uneven illumination, accurately judging working conditions, and avoiding limitations

Active Publication Date: 2020-01-24
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Aiming at the problem that the existing texture feature extraction of flotation bubble images does not consider the bubble surface particles, the present invention defines a texture feature measurement method for particle roughness

Method used

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  • Texture feature measurement method based on particle roughness
  • Texture feature measurement method based on particle roughness
  • Texture feature measurement method based on particle roughness

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] figure 1 It is a flowchart of the present invention.

[0042] Step 1: Use the flotation on-site image acquisition system to collect the bubble video of zinc flotation and convert the bubble video into continuous images, and perform data preprocessing on the collected zinc flotation image data, as follows:

[0043] 1) Eliminate erroneous data that exceeds the normal change threshold;

[0044] 2) Eliminate incomplete data;

[0045] Step 2: Convert the bubble image from an RGB color image to a grayscale image, and obtain the grayscale matrix A of the image:

[0046]

[0047] e gf Represents the gray value corresponding to each pixel in the gray image, where g∈N, f∈N, N∈(400,800).

[0048] Step 3: In the bubble image, the normal shape of the bubble is a smooth surface. The highlighted point is located on the top of the convex surface of a single bubble. The highlighted point area presents the minimum gray value, and the highlighted point is the center, and the gray v...

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Abstract

The invention discloses a texture feature measurement method based on particle roughness. In the foam floating field, the invention provides a texture feature measurement method based on particle roughness. According to the method, a foam image is extracted based on a digital image acquisition system arranged on site; a concept of a particle region is provided, the particle region on the surface of the bubble is accurately extracted, a series of measurements are performed on the extracted particle region, and the particle roughness of the texture feature quantity is defined through a series ofcalculations to reflect the texture features of the whole image. The method effectively makes up the defect that the traditional texture feature extraction method does not consider the particles on the surface of the foam, so that the working condition can be judged more accurately, and dosing is effectively guided.

Description

technical field [0001] The invention belongs to the technical field of froth flotation, and in particular relates to a texture feature measurement method in the zinc flotation process. Background technique [0002] Froth flotation is a mineral processing method widely used at home and abroad. This method can effectively separate the target minerals according to the difference between the hydrophilicity and hydrophobicity of the mineral surface. In the process of froth flotation, the target mineral and its symbiotic gangue are ground into particles of suitable size and then sent to the flotation tank. The surface properties of different mineral particles are adjusted by adding reagents, while the flotation process is continuously stirred and blown to make the slurry A large number of bubbles with different sizes, shapes, textures and other characteristic information are formed in the flotation cell, so that useful mineral particles adhere to the surface of the bubbles, and th...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/34G06K9/46
CPCG06V20/80G06V10/267G06V10/40
Inventor 唐朝晖罗金张国勇张虎范影
Owner CENT SOUTH UNIV