A Material Classification Method Based on Color Sorter

A classification method and color sorter technology, applied in the field of image processing, can solve the problems of different costs, etc., and achieve the effect of improving purity, high commercial use value, and improving quality and value

Active Publication Date: 2018-10-23
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this assumption is difficult to meet in practical applications. For example, in the ore classification problem, judging the valuable type I ore as the worthless type II ore and judging the type II ore as the type I ore, these two wrong The price to be paid for classification must be different

Method used

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  • A Material Classification Method Based on Color Sorter
  • A Material Classification Method Based on Color Sorter
  • A Material Classification Method Based on Color Sorter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0087] Step 1: Put valuable first-class ore samples and worthless second-class ore samples into the color sorter, and use the threshold method and median filter method to preprocess the images collected by the color sorter, that is, to eliminate the background and noise.

[0088] Step 1. Take part of the mixed stones, carry out manual classification and screening, and divide them into valuable first-class ore samples and worthless second-class ore samples;

[0089] Step 2. Put the two types of ore samples into the hopper of the color sorter respectively, and collect image data;

[0090] Step 3. Adjust the background board, take the background color as black, set the threshold width as 50, and use the threshold method to remove the background, that is, the pixels whose values ​​and the average value of the three channels of R, G, and B are all less than 50 are judged as the background , otherwise it is ore, and use median filtering to denoise;

[0091] Step 4: Add labels to t...

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Abstract

The invention discloses a material classification method based on a color sorter. Firstly, valuable first-class material samples and worthless second-class material samples are respectively put into the color sorter, and threshold value method and median filtering method are used to Preprocessing the images collected by the color sorter, that is, eliminating the background and noise, is beneficial to improve the accuracy of subsequent classification and screening; using the optimization algorithm combining C4.5 decision tree and cost-sensitive learning to build a decision tree model can be efficient , Realize the classification of materials in real time, and can improve the purity of a class of valuable materials as much as possible, that is, its accuracy, under the premise of ensuring that the classification accuracy is not greatly affected. Product screening of different purity grades is required.

Description

technical field [0001] The invention belongs to the technical field of image processing, and in particular relates to a material classification method based on a color sorter. Background technique [0002] The traditional sorting of plastics, ores, wheat, etc. uses manual or semi-automatic equipment to sort out foreign objects or objects of poor quality. However, due to the limitations of the human eye in the selection of objects, and the hygienic quality cannot be guaranteed, it cannot satisfy people's pursuit of product quality and hygiene, so the color sorting technology came into being. Color sorting technology refers to the use of the optical characteristics of the product itself. Under the illumination of the light source, its reflective or light-transmitting characteristics vary with the quality of the agricultural product. After passing through the optical lens, the image information of the product is received by the CCD or photodiode. The control chip and microproc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B07C5/342G06K9/62
CPCB07C5/342G06F18/24323G06F18/214
Inventor 李慧琦张延军佟志钰
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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