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The Asian journal on quality v.5 no.1, 2004년, pp.68 - 84  

The Compensation of Machine Vision Image Distortion

Chung, Yi-Chan   (Department of Industrial Engineering and Management Ta-Hwa Institute of Technology  ); Hsu, Yau-Wen   (Department of Industrial Engineering and Management Ta-Hwa Institute of Technolog  ); Lin, Yu-Tang   (Department of Industrial Engineering and Management Ta-Hwa Institute of Technolog  ); Tsai, Chih-Hung   (Department of Industrial Engineering and Management Ta-Hwa Institute of Technology  );
  • 초록

    The measured values of a same object should remain constant regardless of the object's position in the image. In other words, its measured values should not vary as its position in the image changes. However, lens' image distortion, heterogeneous light source, varied angle between the measuring apparatus and the object, and different surroundings where the testing is set up will all cause variation in the measurement of the object when the object's position in the image changes. This research attempts to compensate the machine vision image distortion caused by the object's position in the image by developing the compensation table. The compensation is accomplished by facilitating users to obtain the correcting object and serves the objective of improving the precision of measurement.


  • 주제어

    Machine Vision .   Image Distortion .   Compensation Table.  

  • 참고문헌 (4)

    1. Sobel, Irwin, 'Camera Models and Machine Perception,' Stanford Artificial Intelligence Project, Memo AIM-121, Computer Science Department, Stanford University, May 1970 
    2. Ye, Zheng-Chang, 'Profile Search Rules and Applications of Dual-Variable Shapes,' Journal of the Mechatronic Industry, No. 66, September 1988 
    3. Hou, Dong-Xu, and Guo, Wen-Liang, 'The Study of Marginal Search Rules of Sub-Image Elements,' Collection of Essays VoIume 2, P.1067-1073, Republic of China Industrial Engineering Association Annual Seminar. 1995 
    4. Lin, Yu-Tang, 'Applications of Circle, Line, and Arc Computation to PCB Machine Vision Examination,' Master thesis, Chung-Hua University, Hsinchu, Taiwan, ROC., 1996 

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