Critical characteristic extraction method for flotation foam image analysis

A foam image and key feature technology, applied in the field of foam feature extraction of light metal flotation, can solve the problems of difficult quantitative description and inconspicuous features of flotation foam.
CN101334844AInactive Publication Date: 2008-12-31CENT SOUTH UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CENT SOUTH UNIV
Publication Date
2008-12-31
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a method used for extracting key characteristics in flotation froth image analysis. The method of the invention establishes a flotation froth image collecting platform, on the basis of acquiring froth images with an industrial camera, extracts color feature corresponding to red intensity and H intensity in RGB and HSV color spaces, combines morphologic operations and a watershed method to segment the froth images and extract size characteristics, calculates froth total reflection points to extract bearing capacity feature and adopts an image block correlation analyzing method to extract froth speed feature. The method of the invention can be used for analysis of flotation froth images and estimation of technological parameters and recovery percent in mineral floating process, thus realizing optimization of floatation production operation and reducing the waste of mineral resources.
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Description

[technical field]

[0001] The invention relates to an image processing method in the beneficiation process, in particular to a method for extracting key features of flotation froth images, in particular to extracting froth features of light metal flotation. [Background technique]

[0002] Flotation is the most widely used beneficiation method in mineral processing, which involves extremely complex physical and chemical processes. For a long time, experienced operators have adjusted the flotation operation by observing the foam characteristics of the flotation tank. However, due to the rotation of operators and the subjectivity of human eye observation, they cannot make accurate judgments on the state of the foam, resulting in the failure of the flotation process. in optimal operating condition.

[0003] The environment of the flotation site is harsh, the light is uneven, the size of the foam is small, the bubbles stick together, and even pile up. The edge of the bubble and t...

Claims

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