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广西大学 机械工程学院,广西 南宁 530000
[ "潘海鸿(1966-),男,广西武鸣人,教授,博士生导师,2007年于华中科技大学获得工学博士学位,主要从事机器人控制技术、伺服电机控制、计算机视觉等方面的研究。E-mail:hustphh@163.com" ]
[ "陈琳(1973-),女,山东青岛人,教授,博士生导师,2008年于华中科技大学获得工学博士学位,主要从事机器人技术、数字信号检测与处理技术等方面的研究。E-mail:gxdxcl@163.com" ]
收稿日期:2020-05-29,
修回日期:2020-06-23,
纸质出版日期:2021-01-15
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潘海鸿,王耀玮,徐大斌等.使用非特制靶标实现线结构光平面标定[J].光学精密工程,2021,29(01):54-60.
PAN Hai-hong,WANG Yao-wei,XU Da-bin,et al.Calibration of line-structure light plane using non-specific target[J].Optics and Precision Engineering,2021,29(01):54-60.
潘海鸿,王耀玮,徐大斌等.使用非特制靶标实现线结构光平面标定[J].光学精密工程,2021,29(01):54-60. DOI: 10.37188/OPE.20212901.0054.
PAN Hai-hong,WANG Yao-wei,XU Da-bin,et al.Calibration of line-structure light plane using non-specific target[J].Optics and Precision Engineering,2021,29(01):54-60. DOI: 10.37188/OPE.20212901.0054.
为解决在线结构光测量系统中因缺少特制靶标而无法高精度标定线结构光平面的问题,基于立体视觉原理及线结构光测量系统提出了一种使用非特制靶标的线结构光平面标定方法。该方法采用非特制靶标,将靶标放置于线结构光平面上,利用视差法获取线结构光投影在靶标上形成的点云集,通过更换靶标姿态重复获取多个点云集。采用最小二乘法对所采集的多个点云集进行平面拟合,确定结构光平面参数进而完成对平面的标定。分别采用人体手臂和304钢板充当靶标利用所提出方法完成线结构光平面标定,用该标定的结构光平面进行5种正方形工件的尺寸测量,实验证明提出的标定方法测量精度平均约为
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0.056 mm。该方法能够在不需要特制靶标的情况下完成标定,满足测量系统的精度要求。
High-precision calibration of a line-structure light plane can not be achieved if the measurement systems lack a target plane. To address this problem, this paper proposes a line-structure light plane calibration method using non-specific targets; this method is based on the principle of stereo vision and the line-structure light measurement system. First, a non-specialized target is placed on the line-structure light plane, and point clouds formed by projecting line-structure light on the target are acquired using the parallax method. Multiple point clouds are obtained by varying the posture of the non-specific target. The least squares method is then used to perform plane fitting on these collected multiple point cloud sets, and subsequently, the structure light plane parameters are determined to complete plane calibration. A human arm and 304 steel plate were adopted as the targets, and the proposed method was used for the calibration of the line-structure light plane, where these targets were located. Using this calibrated line-structure light plane, the dimensions of five square workpieces were measured. The results indicate that the average measurement accuracy of the proposed calibration method is approximately ±0.056 mm. This proves that the method can be used for calibration, without requiring a special target, while also meeting the accuracy requirements of the measurement system.
WANG X Y , ZHU Z M , ZHOU F Q , et al . . Complete calibration of a structured light stripe vision sensor through a single cylindrical target [J]. Optics and Lasers in Engineering , 2020 , 131 : 106096 .
王春梅 , 陈丽 . 一种线结构光视觉测量现场标定方法 [J]. 机床与液压 , 2018 , 46 ( 22 ): 80 - 83 .
WANG CH M , CHEN L . A field calibration method for line structured light vision measurement [J]. Machine Tool & Hydraulics , 2018 , 46 ( 22 ): 80 - 83 . (in Chinese)
张曦 , 张健 . 线结构光标定方法综述 [J]. 激光与光电子学进展 , 2018 , 55 ( 2 ): 020001 .
ZHANG X , ZHANG J . Summary on calibration method of line-structured light [J]. Laser & Optoelectronics Progress , 2018 , 55 ( 2 ): 020001 . (in Chinese)
洪磊 , 田啟良 , 嵇保健 . 基于单应性矩阵的线结构光参量标定法 [J]. 光子学报 , 2015 , 44 ( 12 ): 113 - 118 .
HONG L , TIAN Q L , JI B J . Calibration method for line structured-light parameters based on homography matrix [J]. Acta Photonica Sinica , 2015 , 44 ( 12 ): 113 - 118 . (in Chinese)
NIU M H , SONG K C , WEN X , et al . . The line scan camera calibration based on space rings group [J]. IEEE Access , 2018 , 6 : 23711 - 23721 .
陈文亮 , 董清亮 , 刘峰 , 等 . 三维空间中线结构光与相机快速标定方法 [J]. 红外技术 , 2017 , 39 ( 1 ): 81 - 85 .
CHEN W L , DONG Q L , LIU F , et al . . Fast calibration method of multiple line structured light and the camera [J]. Infrared Technology , 2017 , 39 ( 1 ): 81 - 85 . (in Chinese)
LIU Z , LI X J , LI F J , et al . . Calibration method for line-structured light vision sensor based on a single ball target [J]. Optics and Lasers in Engineering , 2015 , 69 : 20 - 28 .
WEI Z Z , LI C Q , DING B S . Line structured light vision sensor calibration using parallel straight lines features [J]. Optik , 2014 , 125 ( 17 ): 4990 - 4997 .
XU F K , FAN S L , YANG Q Q , et al .. Welding robotic hand-eye calibration method based on structured light plane [C]. 2019 Chinese Control Conference (CCC). July 27 - 30 , 2019 . Guangzhou, China . IEEE , 2019 : 1496 - 1500 .
WANG Z , FAN J F , JING F S , et al . . An efficient calibration method of line structured light vision sensor in robotic eye-in-hand system [J]. IEEE Sensors Journal , 2020 , 20 ( 11 ): 6200 - 6208 .
LI W G , LI H , ZHANG H . Light plane calibration and accuracy analysis for multi-line structured light vision measurement system [J]. Optik , 2020 , 207 : 163882 .
邱志成 , 肖骏 . 线结构光视觉系统标定新法及其振动测控应用 [J]. 光学 精密工程 , 2019 , 27 ( 1 ): 230 - 240 .
QIU ZH CH , XIAO J . New calibration method of line structured light vision system and application for vibration measurement and control [J]. Optics and Precision Engineering , 2019 , 27 ( 1 ): 230 - 240 . (in Chinese)
张美静 . 亚像素边缘检测技术研究 [D]. 沈阳 : 沈阳理 工大学 , 2013 .
ZHANG M J . Research on Sub Pixel Edge Detection Technology [D]. Shenyang : Shenyang Ligong University , 2013 . (in Chinese)
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