摘要
为满足水下探测工程对水下测量和三维模型构建技术的需求,研究设计了水下三维测量与模型构建系统.该系统选用CCD工业相机和LightCrafter 4500光学投射器来完成基于相移法的结构光水下测量.首先通过水下标定得到系统的标定参数,再根据光栅图像进行物体表面相位的计算,然后结合标定数据和相位信息逐点计算每个像素点的坐标,最后完成水下物体的三维模型构建.该系统具有实时检测、操作简便等特点,可实现水下物体的测量和三维重建.
In order to meet the requirements of underwater detection engineering for underwater measurement and three-dimensional model construction technology,an underwater three-dimensional measurement and model construction system is designed.The system uses CCD industrial camera and Light Crafter 4500 optical projector to complete the underwater measurement of structured light based on phase-shifting method.Firstly,the calibration parameters of the system are obtained by underwater calibration.Then,the phase of the object surface is calculated according to the grating image.Additionally,the coordinates of each pixel point are calculated by combining the calibration data and phase information.Finally,the 3D reconstruction of the underwater object is completed.The system has the characteristics of real-time detection and simple operation,which can realize the measurement and 3D reconstruction of underwater objects.
作者
孙进
汪和平
丁煜
SUN Jin;WANG Heping;DING Yu(College of Mechanical Engineering,Yangzhou University,Yangzhou 225127,China)
出处
《徐州工程学院学报（自然科学版）》
CAS
2020年第2期67-71,共5页
Journal of Xuzhou Institute of Technology(Natural Sciences Edition)
基金
国家自然科学基金项目(51475409)
江苏省研究生科研与实践创新计划项目(KYCX19_2102)
2018年度江苏省政府留学奖学金(江苏—英国高水平大学20+20行动计划定制项目)
上海交通大学机械系统与振动国家重点实验室开放课题(MSV201810)
2016江苏省“六大人才高峰”高层次人才项目(JXQC-030)
江苏省基础硏究计划(自然科学基金)面上项目(BK20171287)。
关键词
水下标定
水下测量
光学投射器
工业相机
三维重建
underwater calibration
underwater measurement
optical projector
industrial camera
three-dimensional reconstruction
