激光与光电子学进展, 2018, 55 (8): 081203, 网络出版: 2018-08-13
熔覆层检测中单目视觉测量系统的简易标定 下载: 563次
Simple Calibration of Monocular Vision Measurement System in Cladding Layer Detection
摘要
在单目线结构光传感器测量熔覆层尺寸的实验中,为简化单目测量系统标定工具、快速调节测量系统的扫描方向,设计了十字标定板和位姿可变载物台。利用十字标定板可以标定相机和激光平面;将十字标定板和位姿可变载物台结合使用,可标定测量系统的扫描方向并进行调节,避免了激光投射器自身偏角带来的误差。整个标定过程只需要同一个标定板,简化了实验工具;载物台位姿可变,满足快速标定、实时调节扫描方向的条件;该装置操作简单、具有直观的标定结果,对熔覆层的测量误差小于0.05 mm。
Abstract
In order to simplify the monocular measurement system calibration tools and quickly adjust the scanning direction of measurement system, we design the “cross” calibration plate and pose-adjustable working stage in the experiment of measuring the cladding layer size through the monocular line structure-light sensor. The “cross” calibration plate can be used to calibrate the camera and the laser plane. The combination of the “cross” calibration plate with the pose-adjustable working stage is not only helpful to calibrate the scanning direction of the measurement system, but also avoids the errors caused by the deviation of the laser projector. In the whole calibration process, only the same calibration plate is required, so the experimental tools are simplified. Moreover, the pose-adjustable working stage satisfies the condition of fast calibration and real-time adjustment of scanning direction. The device is simple to operate, and presents intuitive calibration results. The measurement error of the cladding layer is less than 0.05 mm.
郭吉荣, 李长勇, 乌日开西·艾依提. 熔覆层检测中单目视觉测量系统的简易标定[J]. 激光与光电子学进展, 2018, 55(8): 081203. Guo Jirong, Li Changyong, Wurikaixi·Aiyiti. Simple Calibration of Monocular Vision Measurement System in Cladding Layer Detection[J]. Laser & Optoelectronics Progress, 2018, 55(8): 081203.