基于改进分水岭-凹点分割的矿石粒径分级检测方法  

Ore Particle Size Classification Detection Method Based on Improved Watershed-Concave Point Segmentation

作　　者：曾凡智 黄子豪 周燕 谭振伟 余家豪 ZENG Fanzhi;HUANG Zihao;ZHOU Yan;TAN Zhenwei;YU Jiahao(College of Electronic Information Engineering,Foshan University,Foshan 528000,China)

机构地区：[1]佛山科学技术学院电子信息工程学院,广东佛山528000

出　　处：《计算机测量与控制》2023年第8期31-37,57,共8页Computer Measurement &Control

基　　金：国家自然科学基金(61972091);广东省自然科学基金(2022A1515010101,2021A1515012639);广东省普通高校重点研究项目(2019KZDXM007,2020ZDZX3049);佛山市科技创新项目(2020001003285);广东省教育科学规划课题(2021GXJK445);佛山科学技术学院2022年度学生学术基金(xsjj202202kjb07)。

摘　　要：为了提高混凝土行业的生产质量,需要对矿石大小做粒径分析,传统方法是采用人工筛分处理,需要耗费大量的人力物力,同时,也存在检测时间长和检测精度低等问题;针对这一难题,通过利用计算机视觉技术,提出了一种基于改进分水岭-凹点分割的矿石粒径分级检测新方法;首先,利用图像自适应中值滤波和改进的多尺度形态学处理,提取矿石轮廓特征;其次,采用改进的分水岭分割和凹点分割相结合,获得矿石之间粘连形成的深凹点集合;最后,引入反向链码模板对凹点集进行有效的分离,从而对矿石粒径做出精准的统计分析;实验结果表明,该算法的粒径分级与人工筛分的粒径分级相比较,两者之间的累积误差率在5%以内,具有较高的准确性与实用性,值得大力地推广与应用。In order to improve the production quality of concrete,it is necessarytoanalyze the particle size of ore size.Traditional methodsrequire a lot of labor and material resources byusing manual sieving processing.At the same time,there are also the problems of long detection time and low detection accuracy;To address this problem,a new ore particle size classification detection method based on improved watershed-concave segmentation is proposed by using computer vision technology.Firstly,image adaptive median filter and improved multi-scale morphological processing are used to extract ore contour features.Secondly,the combination of improved watershed segmentation and concave point segmentation is used to obtain the set of deep concave points formed by the adhesions between ores.Finally,an inverse chain code template is introduced to effectively separate the set of concave points to make an accurate statistical analysis of the ore grain size.The experimental results show thatthe particle size classification of the algorithmis compared withthat of the manual sieving processing,the cumulative error rate is within 5%.Therefore,this algorithm has high accuracy and practicality,and it is worthy of vigorous promotion and application.

关 键 词：粒径分级 形态学处理 反向链码 分水岭分割 凹点分割 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]