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    • 9. 发明申请
    • COMPUTER AIDED INSPECTION MACHINE
    • 计算机辅助检测机
    • WO9822860A3
    • 2000-08-24
    • PCT/US9720431
    • 1997-11-07
    • BUCKLEY B SHAWNCHEN JIHONGYANG DAO SHANZHOU HUI CHENG
    • BUCKLEY B SHAWNCHEN JIHONGYANG DAO SHANZHOU HUI CHENG
    • G01B11/02G01B11/24
    • G01B11/024
    • An automatic inspection method and apparatus using structured light (3) and machine vision cameras (2) to inspect an object (4) in conjunction with the geometric model of the object (4) is disclosed. Camera images of the object (4) are analyzed by computer to produce the location of points on the object's surface in three dimensions. During a setup phase before object inspection, the points are analyzed with respect to the geometric model computer file of the object (4). Many points are eliminated to reduce data-taking and analysis time to a minimum and to prevent extraneous reflections from producing errors. When similar objects are subsequently inspected, points from each surface of interest are spatially averaged to give high accuracy measurements of object (4) dimensions. The inspection device uses several multiplexed sensors, each composed of a camera (2) and a structured light source (3), to measure all sides of the object (4) on a single pass. Calibration and compensation methods are also disclosed.
    • 公开了一种使用结构光(3)和机器视觉摄像机(2)与物体(4)的几何模型一起检查物体(4)的自动检查方法和装置。 计算机对物体(4)的相机图像进行分析,以在三维上产生物体表面上的点的位置。 在对象检查之前的设置阶段,对对象(4)的几何模型计算机文件进行分析。 消除了许多观点,将数据采集和分析时间降至最低,并防止外部反射产生错误。 当随后检查相似的物体时,来自每个感兴趣表面的点在空间上被平均以给出物体(4)尺寸的高精度测量。 检查装置使用由摄像机(2)和结构化光源(3)组成的多个多路复用传感器,以一次通过测量物体(4)的所有侧面。 还公开了校准和补偿方法。