教授 博士生导师 硕士生导师
主要任职: 机械工程学院院长、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
学科: 机械电子工程. 测试计量技术及仪器. 精密仪器及机械
办公地点: 辽宁省大连市大连理工大学机械工程学院知方楼5027
联系方式: 辽宁省大连市大连理工大学机械工程学院,116023
电子邮箱: lw2007@dlut.edu.cn
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论文类型: 期刊论文
发表时间: 2011-06-01
发表刊物: PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART B-JOURNAL OF ENGINEERING MANUFACTURE
收录刊物: Scopus、SCIE、EI
卷号: 225
期号: B6
页面范围: 901-908
ISSN号: 0954-4054
关键字: dimension measurement; large forging; stereo vision; structured light
摘要: Non-contact dimensional measurements are desirable in several hot-working processes, such as hot forging processes. A dimensional measurement method, used to reduce scrap and waste during forming processes, is presented, based on a spectrum selective method and stereo vision structured light technique. Using the spectrum selective method, the image of the hot forging can be obtained without interference by self-emitted radiation. A coded single pattern is projected towards the hot forging to label characteristic lines, and simplify the process of finding correspondences between image pairs. The depth can be estimated by triangulation. An ellipse is fitted to the reconstructed 3D data for calculating the diameter of the forging. Experiments in a forging workshop are conducted to measure the diameters of round forgings. The results verify the effectiveness of the presented method.