基于光整加工技术的粉体图像灰度分布相似性检测  

Similarity detection of powder image gray distribution based on finishing processing technology

作　　者：王晓骁 陈颀[1] 梁俊宇 杨佳欣 陶雄雄 谢佳明 WANG Xiao-xiao;CHEN Qi;LIANG Jun-yu;YANG Jia-xin;TAO Xiong-xiong;XIE Jia-ming(Information Engineering and Automation,Kunming University of Science and Technology,Kunming,650500 Yunnan,China;Yunnan Electric Power Research Institute of China Southern Power Grid,Kunming,650500 Yunnan,China;School of Information Engineering,Taiyuan University of Technology,Taiyuan,030000 Shanxi,China)

机构地区：[1]昆明理工大学信息工程与自动化学院,云南昆明650500 [2]云南电网有限责任公司电力科学研究院,云南昆明650500 [3]太原理工大学信息工程学院,山西太原030000

出　　处：《光电子．激光》2021年第5期505-514,共10页Journal of Optoelectronics·Laser

基　　金：云南省教育厅科学研究基金项目(2019Y0035)资助项目。

摘　　要：为光整加工技术当中的烧结型滚抛磨块的粉体原料均匀性判断提供理论依据,提出一种粉体图像相似性检测理论。首先利用采样转盘采集粉体样本,并通过数字显微镜采集粉体图像,将采集到的粉体图像进行灰度化、降采样、滤波和锐化处理,滤除采集过程中出现的噪声,使得图像细节更加清晰;其次提取基于灰度直方图的特征参数,利用均值法得到中心图像的特征参数及权重;最后计算各图像与中心图像带权重的欧式距离,用距离均值表征图像的灰度分布相似性。实验结果表明:通过仿真分析不同时刻采集到的粉体图像,得到粉体混合过程中粉体图像灰度分布相似性随时间的变化趋势,为之后工作中粉体混合均匀性的判断提供依据。It provides a theoretical basis for judging the uniformity of the powder raw materials of the sintered tumble polishing abrasive block in the finishing technology,and proposes a powder image similarity detection theory.Firstly,the sampling wheel is used to collect the powder samples,and the powder images are collected through the digital microscope.The collected powder images are grayed out,sampled down,filtered and sharpened to filter out the noise during the collection process and make the details of the images clearer.Secondly,the feature parameters based on gray histogram are extracted,and the feature parameters and weight of the central image are obtained by means of mean value method.Finally,the weighted Euclidean distance between each image and the center image is calculated,and the gray distribution similarity of the image is represented by the distance mean value.The experimental results show that the variation trend of gray distribution similarity of powder images with time is obtained through simulation analysis of powder images collected at different times in the process of powder mixing,which provides a basis for the judgment of powder mixing uniformity in later work.

关 键 词：光整加工技术 粉体图像 图像预处理 灰度直方图 

分 类 号：TQ174[化学工程—陶瓷工业]