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Alternative TitleStudy of On-line Measurement Method for 3D Coordinates ofBody-in-White Hole Slot Features
胡彦强; 马钺; 许敏
Source Publication计算机工程
Volume43Issue:10Pages:186-191, 197
Indexed ByCSCD
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
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.
Citation statistics
Cited Times:1[CSCD]   [CSCD Record]
Document Type期刊论文
Corresponding Author胡彦强
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.
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