机电工程技术2024，Vol.53Issue(7)：83-86,4.DOI:10.3969/j.issn.1009-9492.2024.07.017
一维摄像机的线结构光测头标定方法
Calibration Method of Line Structure Optical Probe for One-dimensional Camera
摘要
Abstract
In order to solve the problem of tedious steps and insufficient accuracy in the traditional line structure cursor determination process,the optical knife plane of line structure light is proposed as the measuring head calibration method of one-dimensional camera.First,the coordinate information is extracted from the light bar center of line structure light and its position coordinates are calculated on the calibration target.Then,the fitting plane equation is established according to the three-dimensional coordinate points of the light bar center under at least two groups of gestures.Finally,a virtual one-dimensional camera is constructed to represent the optical knife plane.By iterative camera calibration and line structure light probe calibration,and combined with triangulation technology,the three-dimensional point cloud data coordinates of the measured object in the stereoscopic model can be obtained.Two measuring blocks with high and low difference are measured,and the calibration experiment is repeated for 10 times.The results show that the average error of iterative camera calibration is 0.077 220 pixel,and the average error of optical knife plane calibration is 1.415 17 mm.This experiment shows that this linear structure optical probe calibration method has high accuracy and it is feasible.关键词
线结构光/测头标定/光条中心/光刀平面Key words
linear structured light/probe calibration/light bar center/light knife plane分类
矿业与冶金引用本文复制引用
周涛,高承帅,王建,聂潇乾,王炳琪,吴彬彬..一维摄像机的线结构光测头标定方法[J].机电工程技术,2024,53(7):83-86,4.基金项目
工信部自然灾害防治技术装备工程化攻关专项项目(TC210H00L/43) （TC210H00L/43）
上海市科技创新行动计划项目(20511106700) （20511106700）
上海市科技兴农项目(沪农科创字2020第3-2号) （沪农科创字2020第3-2号）
上海市产业协同创新发展项目(HCXBCY-2023-028、XTCX-KJ-2023-50、HCXBCY-2021-010) （HCXBCY-2023-028、XTCX-KJ-2023-50、HCXBCY-2021-010）
