Research on Fast Method for Centerline Extraction of Laser Stripe for Vision Inspection System

CORC > 沈阳自动化研究所 > 中国科学院沈阳自动化研究所 > 装备制造技术研究室

	Research on Fast Method for Centerline Extraction of Laser Stripe for Vision Inspection System
	Xu M(许敏); Zhao MY(赵明扬); Zou YY(邹媛媛); Guo Q(郭奇)
	2009
会议名称	The IASTED International Conference on Modeling, Simulation and Identification
会议日期	October 12-14, 2009
会议地点	Beijing, China
关键词	Tailored blanks laser welding local threshold geometric centre laser stripe
页码	876-
中文摘要	In the quality inspection system of tailored blanks laser welding, whether the system can quickly and precisely extract the centerline of laser stripe is one of the key factors that influence the performance of quality inspection system. Although traditional Gaussian fitting and Hessian matrix have the feature of sub-pixel precision, the computational complexity is tremendous. Therefore, they can’t satisfy the requirement of real time performance of the inspection system. On the analysis of the characteristic of images of tailored blanks laser welding, the author applies the traditional Geometrical Center method to extracting the centerline of laser stripe and proposes Local Threshold Geometric Centre method which has a precision between pixel and sub-pixel. The experimental results demonstrate that the proposed method which has the advantages of higher precision and stronger anti-interference performance extracts the centerline of laser stripe with a high speed and lays a foundation for the realization of on-line inspection of seam surface quality.
收录类别	EI
产权排序	1
会议录	The IASTED International Conference on Modeling, Simulation and Identification
语种	英语
内容类型	会议论文
源URL	[http://ir.sia.cn/handle/173321/7909]
专题	沈阳自动化研究所_装备制造技术研究室
推荐引用方式 GB/T 7714	Xu M,Zhao MY,Zou YY,et al. Research on Fast Method for Centerline Extraction of Laser Stripe for Vision Inspection System[C]. 见:The IASTED International Conference on Modeling, Simulation and Identification. Beijing, China. October 12-14, 2009.