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CORRECTION FOR MONITOR REFRACTION USING EMPIRICALLY DERIVED DATA

机译:使用经验数据校正显示器折射

摘要

An automated video monitor alignment system for transforming coordinated systems includes a camera (80) and computer (90) to capture an image of the display bezel and the image displayed on the CRT (82). Three dimensional models of the CRT tube and display bezel are used to compute and compensate for camera perspective. Camera pixel data can then be transformed to 'flat plane' coordinates. When the relative orientation of the camera and CRT are corrected, the effects of parallax can be eliminated, allowing more accurate inspection, measurement, and lower cost fixturing on the production line. Correction factors for correcting errors due to refraction can also be generated empirically in accordance with the present invention. Slope coordinate data is generated for a sample monitor for predetermined slope coordinate locations on the tube face. Correction signals can be generated from the slope coordinate data and measured tilt angles of the monitor relative to the vision system.
机译:用于变换协调系统的自动视频监视器对准系统,包括照相机(80)和计算机(90),以捕获显示边框的图像和在CRT(82)上显示的图像。 CRT管和显示屏边框的三维模型用于计算和补偿摄像机的视角。然后可以将相机像素数据转换为“平面”坐标。纠正了摄像机和CRT的相对方向后,可以消除视差的影响,从而可以在生产线上进行更准确的检查,测量和降低成本。根据本发明,还可以凭经验产生用于校正由于折射引起的误差的校正因子。产生用于样品监测器的倾斜坐标数据,以用于在管面上预定的倾斜坐标位置。可以从倾斜坐标数据和监视器相对于视觉系统测得的倾斜角生成校正信号。

著录项

  • 公开/公告号WO9843444A1

    专利类型

  • 公开/公告日1998-10-01

    原文格式PDF

  • 申请/专利权人 DISPLAY LABORATORIES INC.;

    申请/专利号WO1997US04732

  • 发明设计人 WEBB JAMES;THARIO JAMES E.;

    申请日1997-03-24

  • 分类号H04N17/04;

  • 国家 WO

  • 入库时间 2022-08-22 02:51:11

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