贾振元

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

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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