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个人信息Personal Information
教授
博士生导师
硕士生导师
主要任职:校长、党委副书记
性别:男
毕业院校:大连理工大学
学位:博士
所在单位:机械工程学院
电子邮箱:jzyxy@dlut.edu.cn
基于结构光的大锻件尺寸测量中光条纹中心线提取方法
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论文类型:期刊论文
发表时间:2022-06-29
发表刊物:大连理工大学学报
卷号:52
期号:2
页面范围:203-208
ISSN号:1000-8608
摘要:It is difficult to measure the dimension of hot large forging accurately
in forging process because of the high temperature and poor measuring
conditions.Accurate dimension measurement of hot part is very important
to improve productivity and reduce scraps during hot forming
process.Based on the image acquiring method of hot forgings,binocular
structured light system is used to measure the dimension of hot large
forgings on-line.Thus,the center-lines of structured light-stripes
should be extracted by eliminating other kinds of structured light
reflected by hot large forging.A method for extracting the center-lines
of structured light-stripes from the single image of hot large forging
is proposed.According to a certain threshold,the initial locations of
structured light stripes and other kinds of light stripes are determined
along a line in the row direction.The cross section of structured light
stripe usually obeys the Gaussian distribution,so other kinds of light
stripes can be eliminated by searching along the light stripes.Once the
start points of light stripes are located in the image,the subpixel
centers of structured light stripes can be calculated by searching along
the light stripes.Experimental results show that this method is
convenient and stable,and can efficiently extract the center-lines of
structured light stripes which are projected on the surface of hot large
forgings.
备注:新增回溯数据