基于K-means的金属矿物光片嵌布粒度测量  

Particle Size Measurement of Metallic Minerals Polished Section Based on K-means

作　　者：罗朝熙 和丽芳[1] 杨昌洲 杨社平 黄斌 马关宇[2,3] 黄宋魏 LUO Chaoxi;HE Lifang;YANG Changzhou;YANG Sheping;HUANG Bin;MA Guanyu;HUANG Songwei(Faculty of Land Resources Engineering,Kunming University of Science and Technology,Kunming 650093,China;Key Laboratory of Sanjiang Metallogency and Resource Exploration and Utilization,Kunming 650200,China;Yunnan Provincial Bureau of Geology and Mineral Exploration and Development Center Laboratory,Kunming 650200,China;Yunnan Tianan Chemical Co.,Ltd.,Kunming 650228,China)

机构地区：[1]昆明理工大学国土资源工程学院,昆明650093 [2]自然资源部三江成矿作用及资源勘察利用重点实验室,昆明650200 [3]云南省地质矿产勘查开发局中心实验室,昆明650200 [4]云南天安化工有限公司,昆明650228

出　　处：《有色金属工程》2022年第7期125-131,共7页Nonferrous Metals Engineering

基　　金：云南省科技厅基金资助项目(202101AT070277);云南省万人计划人才项目(CCC21321247A)。

摘　　要：目前金属矿物嵌布粒度的测定主要依靠技术人员在显微镜下观测,存在工作量大、观测粒度准确度和精度不高等问题。因此提出了基于K-means聚类算法的金属矿物嵌布粒度测量方法。初始聚类中心数K值的准确预设是K-means算法的核心之一,利用金属矿物光片显微镜下图像中的颜色特征,对原矿图像中的矿物种类进行准确判别,再将识别到的矿物颜色特征作为设置K值的依据。通过K-means算法将目的矿物的颜色聚类为单一的颜色,对聚类的图像进行颜色分割,最后利用Feret Diameter精确测量出该金属矿物嵌布粒度。结果表明:利用建立的方法明显提高了金属矿物嵌布粒度测量的准确度、精度和效率,具有极大的应用价值。At present,the determination of the particle size of metal minerals inlays mainly relies on the observation of technicians under a microscope,which has problems such as heavy workload and low accuracy and precision of the observed particle size.Therefore,a particle size measurement method based on K-means clustering algorithm is proposed.The accurate presetting of the K value of the initial clustering center number of the K-means algorithm is one of the cores of this method.This project has carried out in-depth research and found that the color features in the image under the light sheet microscope of metal minerals can be used to accurately distinguish the types of minerals,and then use the identified mineral color characteristics as the basis for setting the K value.The color of the target mineral is clustered into a single color through the K-means algorithm,the clustered image is color segmented,and the Feret Diameter is used to accurately measure the particle size of the metal mineral patch.The results show that this method obviously improves the accuracy,precision and efficiency of the particle size measurement of metallic mineral intercalation,and has great application value.

关 键 词：嵌布粒度 K-MEANS 颜色分割 Feret Diameter 

分 类 号：TP391[自动化与计算机技术—计算机应用技术] TD912[自动化与计算机技术—计算机科学与技术]