基于图像增强及改进霍夫检测算法的球团粒度检测
Detecting of pellet size based on image enhancement and improved Hough detection algorithm
张学锋 1秦继洋 1黄刘松 2龙红明 3余正伟3
作者信息
- 1. 安徽省工业互联网智能应用与安全工程研究中心,安徽马鞍山 243032
- 2. 马鞍山师范高等专科学校计算机与信息工程学院,安徽马鞍山 243041
- 3. 安徽工业大学冶金工程学院,安徽马鞍山 243032
- 折叠
摘要
为解决球团图像过曝失真及球团粘连难以识别的问题,提出一种改进的对比度限制自适应直方图均衡化方法实现图像增强,并引入多尺度霍夫检测算法实现对球团的有效检测.首先,引入细节保护机制,使用对比度增强函数来调整对比度限制自适应直方图均衡化(CLAHE)的输出结果,从而限制对比度增强的幅度,同时保留图像中更多的细节信息;其次,通过自适应中值滤波对增强图像噪声进行过滤;最后,引入多尺度的霍夫检测算法,解决粘连球团识别问题,实现对球团粒度的准确、实时、高效检测和统计.某钢厂实际应用结果表明,此方法对球团粒度识别的准确度达到94.44％,对合格球团个数的检测准确度可达96.72％,能够达到球团制备工艺的要求,对提高生产效率、降低人工成本、提高球团制备合格率等具有积极作用.
Abstract
To address the issues of overexposure distortion and challenging identification of pellet adhesion in pellet images,an enhanced contrast-limited adaptive histogram equalization method was proposed for image enhancement,along with the introduction of a multi-scale Hough detection algorithm for efficient pellet detection.Firstly,the en-hanced contrast-limited adaptive histogram equalization method incorporates a detail security mechanism by utilizing a contrast enhancement function to adjust the output of contrast-limited adaptive histogram equalization(CLAHE).The extent of contrast improvement is limited by this approach,while simultaneously preserving more detailed infor-mation in the images.Then,the image noise induced after enhancement is filtered by the adaptive median filtering method.Finally,the multi-scale Hough detection algorithm is applied to tackle both adhesion pellet identification and detection challenges,so as to realize the accurate,real-time and efficient detection and statistics of pellet size.Practical application results from a steel factory reveal that this method achieves a precision rate of as high as 94.44％,with 96.72％accuracy in determining the number of qualified pellets,fulfilling the requirements of pellet preparation process.This method plays a vital role in enhancing production effectiveness,decreasing labor expen-ses,and enhancing overall quality control rates for pellet preparation.
关键词
粒度检测/氧化球团/图像增强/霍夫检测/直方图均衡化Key words
particle size detection/oxidized pellet/image enhancement/Hough detection/histogram equalization引用本文复制引用
基金项目
安徽省教育厅重点实验室项目(TZJQR007-2023)
安徽省重点实验室开放基金(SKF24-04)
出版年
2024
NETL
NSTL
万方数据