Chinese Optics, Volume. 16, Issue 3, 500(2023)

Research progress of grating projection on machine 3D topography inspection technology

Hong-yu LV, Mao-yue LI*, Dong-chen CAI, and Wei-xiang ZHAO
Author Affiliations
  • Key Laboratory of Advanced Manufacturing and Intelligent Technology, Ministry of Education, Harbin University of Science and Technology, Harbin 150080, China
  • show less
    Figures & Tables(23)
    Development trend of part measurement technology
    Architecture of an on-machine detection system based on structured light
    GOM ATOS ScanBox 8360 3D measurement system
    Monocular structured light intelligent on-machine detection platform developed by our research group
    3D measurement flow based on digital grating projection
    Optical path of the distorted projection system
    Surface reflection phenomenon of thin-walled blades
    Missing point cloud formed by reflection
    (a) Full automatic exposure enhancement 3D measurement system and (b), (c) it’s flow chart[32]
    Three dimensional measurement system of compact reflective metal workpiece[36]
    Structured light projection measurement model
    Repair method flow based on point cloud optimization information[50]
    Point cloud hole repair process based on the GA-BP algorithm
    Measurement and reconstruction of a large blade of an unmanned vehicle equipped with a manipulator[56]
    3D reconstruction model of the inner surface of a microtubule hole [61]
    Aerospace engine casing
    Viewpoint planning measurement process
    • Table 1. Performance and characteristics of the optical measurement system platform

      View table
      View in Article

      Table 1. Performance and characteristics of the optical measurement system platform

      测量系统平台测量精度距离量程优点缺点适用场景
      电子经纬仪10 μm0~150 m具有误差自修正功能, 抗干扰性强 内部元器件制造 误差制约测量精度 大尺寸零件装配 及尺寸检测
      结构光投影测量系统0.1~20 μm0.1~10 m非逐点检测,测量效率高测量过程受反光影响复杂形貌零件,高效测量
      激光扫描仪0.1~10 μm0~80 m测量精度高,便携性好测量效率较低小尺寸零件,动态测量
      机械臂测量系统50 μm0~5 m自动化程度高场景约束性强,便携性较差全自动化加工检测场景
      白光干涉仪纳米级或亚纳米级150 μm~20 mm测量精度较高使用条件及要求较苛刻, 测量效率低 超精密加工及3C电子检测
    • Table 2. Typical adaptive measurement parameter calibration methods

      View table
      View in Article

      Table 2. Typical adaptive measurement parameter calibration methods

      代表性学者技术方法优点缺点适用场景
      Yao[17]图像特征向量法标定精度高复杂度偏高工业化快速标定测量场景
      Gao[18]视野变焦控制法标定速度快,实时性好难以适用于复杂检测场景物距变化测量场景
      Moru[22]参数规律统计法无需设置初始参数较难获取精确参数区间采用定焦镜头的测量过程
      管雯璐[23]微型自动调节装置装置灵活、抗环境干扰强成本较高变温条件下的自动标定
      Hojong Choi[25]步进电机自动控制法不需人为干预,自动化水平高装置占用空间较多自适应焦距调节
    • Table 3. Comparison of typical optical saturation optimization methods

      View table
      View in Article

      Table 3. Comparison of typical optical saturation optimization methods

      代表性学者技术方法优点缺点适用场景
      Pinzek [29]多重曝光控制法曝光参数控制较方便,无需额外硬件系统难以根据环境定量精确控制曝光, 耗时长 环境光照影响较为主要时的检测
      Liu [32]全自动快速最佳曝光计算方法检测过程自动化水平 较高 易影响反射率较小部位,造成曝光 不足 表面尺寸较大的反光物体检测
      陈龙[35]局部自适应条纹投影法具有针对性的处理, 不影响其他区域像素 准确的灰度阈值较难 确定 叶片、轴类表面反射率 差异大的对象检测
      Liu [37]多目视点配准法测量精度 较高 受测量空间限制,欠缺灵活性小范围精密物体的在机检测
      Zhang [38]偏振滤光 片法 可较精确控制光平衡需要添加额外的光学及控制硬件镜面物体的在机检测
    • Table 4. Comparison of representative methods of on machine dynamic phase compensation

      View table
      View in Article

      Table 4. Comparison of representative methods of on machine dynamic phase compensation

      代表性学者技术方法优点缺点适用场景
      Feng[40]周期性运动相位补偿法对规律性误差补偿效 果好 难以应用于复杂运动 场景 匀速运动状态的相位 补偿
      Deng[41]条纹阶噪声分析法无需逐像素计算相位 误差 依赖实验条件及人工分析步骤存在噪声的动态场景 测量
      郭逸凡[42]光流补偿法准确判断运动测量状态对环境光线过于敏感高速动态场景测量
      Kim[43]相移格雷码结合方式操作简单、测量速度快易引起新的测量误差实时在机三维扫描测量
    • Table 5. Common outlier removal methods

      View table
      View in Article

      Table 5. Common outlier removal methods

      离群点去除方法适用场景
      基于迭代优化算法适合于在杂乱噪声中搜寻临近目标点
      基于邻域信息的 点云聚类算法 适合对具有特定类型的 点云数据进行分类
      基于点云频率的滤波方式适合对较复杂形状点云模型的分割计算
    • Table 6. Comparison of different types of surface reconstruction technologies

      View table
      View in Article

      Table 6. Comparison of different types of surface reconstruction technologies

      曲面类型典型代表曲面特点测量难点适用测量策略曲面拟合方法
      大尺寸曲面零件涡轮发动机叶片、航空曲面零件形状较规律,曲面尺寸数米至数十米一次扫描难以测量出完整表面点云,且数据计算量庞大采用柔性测量装置并配合多视角点云拼接方式曲面片直接 拟合法
      微型曲面零件微型精密半导体零件、精密光学器件曲面尺寸较微小 (毫米级) 点云分割难度较大,且较难解决 过拟合和欠拟合问题 搭载光学高倍镜头和立体显微镜的光栅条纹投影法的测量方式样条曲线 拟合方法
      复杂形状及曲面结合体复杂腔体类零件结构复杂,面数较多点云模型拟合困难,测量繁琐,难以获得高精度且完整的点云模型接触式与非接触式结构 光结合的测量方式 基于特征约束及交互式曲面拟合方法
    Tools

    Get Citation

    Copy Citation Text

    Hong-yu LV, Mao-yue LI, Dong-chen CAI, Wei-xiang ZHAO. Research progress of grating projection on machine 3D topography inspection technology[J]. Chinese Optics, 2023, 16(3): 500

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Save article for my favorites
    Paper Information

    Category: Original Article

    Received: Apr. 28, 2022

    Accepted: --

    Published Online: May. 31, 2023

    The Author Email:

    DOI:10.37188/CO.2022-0083

    Topics