SIA OpenIR  > 智能检测与装备研究室
白车身孔槽类特征三维坐标在线测量方法研究
Alternative TitleStudy of On-line Measurement Method for 3D Coordinates ofBody-in-White Hole Slot Features
胡彦强; 马钺; 许敏
Department智能检测与装备研究室
Source Publication计算机工程
ISSN1000-3428
2017
Volume43Issue:10Pages:186-191, 197
Indexed ByCSCD
CSCD IDCSCD:6084004
Contribution Rank1
Keyword白车身 被测孔槽 双目立体视觉 线激光光纹 亚像素边缘
Abstract为实现白车身孔槽类特征三维坐标的视觉测量,在双目立体视觉测量原理的技术上,以激光器辅助扫描被测孔槽完成三维测量,针对圆孔和复合孔槽边缘及孔心坐标的空间定位问题,提出一种在线测量方法。采用Canny边缘检测和Ramer算法分割出圆弧部分完成孔边缘的粗定位,结合Bazen方法与正交多项式拟合法实现亚像素边缘点坐标的精确定位,并通过权重拟合得到椭圆参数方程。在线激光光纹中心线提取过程中,融合极值法、阈值法与重心法,将拟合椭圆与光纹中心线的交点作为双目立体视觉的匹配点,进而完成空间点三维坐标的测量。实验结果表明,提出的方法鲁棒性好,对圆孔类特征的综合定位精度高。
Other AbstractIn order to realize the visual measurement for the 3D coordinates of body-in-white hole slot feature, based on the principle of binocular stereo vision measurement, the laser is used as the auxiliary equipment to scan the tested hole slot, to complete 3D measurement. Aiming at the space location problem of round hole, compound hole edge and hole core coordinate, an on-line measurement method is proposed. Canny edge detection and Ramer algorithm are used to segment the circular arcs for completing the rough positioning of hole edges. The precise localization of the sub-pixel edge point coordinates is realized by combining the Bazen algorithm and the orthogonal polynomial fitting method. And the ellipse parameter equation is obtained by w eight fitting . During online extraction of laser stripe centerline, combining the extremum method, threshold method and gravity method, the intersection points of the fitted ellipse and the center line of light are used as the matching points of binocular stereo vision, and then the 3D coordinates of space points are measured. Experimental results show that the proposed method is of strong robustness, and the comprehensive positioning accuracy of the round hole type is high.
Language中文
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sia.cn/handle/173321/21099
Collection智能检测与装备研究室
Corresponding Author胡彦强
Affiliation1.中国科学院沈阳自动化研究所
2.中国科学院大学
Recommended Citation
GB/T 7714
胡彦强,马钺,许敏. 白车身孔槽类特征三维坐标在线测量方法研究[J]. 计算机工程,2017,43(10):186-191, 197.
APA 胡彦强,马钺,&许敏.(2017).白车身孔槽类特征三维坐标在线测量方法研究.计算机工程,43(10),186-191, 197.
MLA 胡彦强,et al."白车身孔槽类特征三维坐标在线测量方法研究".计算机工程 43.10(2017):186-191, 197.
Files in This Item: Download All
File Name/Size DocType Version Access License
白车身孔槽类特征三维坐标在线测量方法研究(615KB)期刊论文作者接受稿开放获取ODC PDDLView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[胡彦强]'s Articles
[马钺]'s Articles
[许敏]'s Articles
Baidu academic
Similar articles in Baidu academic
[胡彦强]'s Articles
[马钺]'s Articles
[许敏]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[胡彦强]'s Articles
[马钺]'s Articles
[许敏]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 白车身孔槽类特征三维坐标在线测量方法研究.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.