Image processing and feature extracting of welding seam misalignment for high-frequency welded pipe

doi:10.3969/j.issn.1671-7775.2012.04.015

	Image processing and feature extracting of welding seam misalignment for high-frequency welded pipe
	He, Shiquan 1,2; Xiao, Hong 3; Fan, Ding3 ; Shi, Yu3
	2012-07-01
发表期刊	Jiangsu Daxue Xuebao (Ziran Kexue Ban)/Journal of Jiangsu University (Natural Science Edition)
ISSN	16717775
卷号	33 期号:4 页码:449-452
摘要	To obtain real time detection of unfitness defect in high-frequency weld(HFW) pipe, a CCD visual measurement system was developed. The characteristic of the unfitness defect in captured image was analyzed. The image processing of misalignment was conducted by morphology method to extract edge image and the width and brightness of welding seam. The results show that the width and brightness of welding seam can be used as characteristic parameters to detect the unfitness defect in HFW pipe and to establish a visual system for inspecting welding unfitness. At the LabVIEW virtual instrument, the controlled temperature system of HFW pipe was established by colorimetric temperature measurement to realize controlled temperature test. The test results show that the influences of dust, moisture and other interference factors on temperature measurement can be better reduced by colorimetry temperature measurement mode to improve the stability and precision of temperature. At the basis of stable and accurate temperature measurement, the effective temperature control system can be realized.
关键词	Alignment Colorimetry Defects Luminance Seam welding Temperature measurement Colorimetric temperature measurement Controlled temperature Effective temperature Image features LabVIEW virtual instrument Morphemically Visual inspection Welded pipes
DOI	10.3969/j.issn.1671-7775.2012.04.015
收录类别	EI
语种	中文
出版者	Journal of Jiangsu University (Natural Science Edition)
EI入藏号	20124115554832
EI主题词	Image processing
EI分类号	538.2.1 Welding Processes - 601.1 Mechanical Devices - 941.4 Optical Variables Measurements - 944.6 Temperature Measurements - 951 Materials Science
来源库	Compendex
分类代码	538.2.1 Welding Processes - 601.1 Mechanical Devices - 941.4 Optical Variables Measurements - 944.6 Temperature Measurements - 951 Materials Science
引用统计	无
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/111548
专题	材料科学与工程学院
作者单位	1.School of Mechanical and Power Engineering, Nanjing University of Technology, Nanjing, Jiangsu 210009, China; 2.Post Doctorate Work Station, Zhejiang Kingland Pipeline Science and Technology Limited Company, Huzhou, Zhejiang 313000, China; 3.Key Laboratory of Non-Ferrous Metal Alloys and Processing of Ministry of Education, Lanzhou University of Technology, Lanzhou, Gansu 730050, China
推荐引用方式 GB/T 7714	He, Shiquan,Xiao, Hong,Fan, Ding,et al. Image processing and feature extracting of welding seam misalignment for high-frequency welded pipe[J]. Jiangsu Daxue Xuebao (Ziran Kexue Ban)/Journal of Jiangsu University (Natural Science Edition),2012,33(4):449-452.
APA	He, Shiquan,Xiao, Hong,Fan, Ding,&Shi, Yu.(2012).Image processing and feature extracting of welding seam misalignment for high-frequency welded pipe.Jiangsu Daxue Xuebao (Ziran Kexue Ban)/Journal of Jiangsu University (Natural Science Edition),33(4),449-452.
MLA	He, Shiquan,et al."Image processing and feature extracting of welding seam misalignment for high-frequency welded pipe".Jiangsu Daxue Xuebao (Ziran Kexue Ban)/Journal of Jiangsu University (Natural Science Edition) 33.4(2012):449-452.