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Realization for Moving Object Sensing and Path Tracking System using Stereo Line CCDs

스테레오 라인 CCD를 이용한 이동객체감지 및 경로추적 시스템 구현

  • 류광렬 (목원대학교 전자공학과) ;
  • 김영빈 (목원대학교 전자공학과)
  • Published : 2008.11.30

Abstract

A realization for moving object sensing and tracking system in two dimensional plane using stereo line CCDs and lighting source is presented in this paper. The system is realized that instead of processing camera images directly, two line CCD sensor and input line image is used to measure two dimensional distance by comparing the brightness on line CCDs. The algorithms are used the moving object sensing, path tracking and coordinate converting method. To ensure the effective detection of moving path, a detection algorithm to evaluate the reliability of each measured distance is developed. The realized system results are that the performance of moving object recognizing shows 5mm resolution, and enables to track a moving path of object per looms period.

본 논문은 스테레오 라인 CCD와 광원을 이용한 2차원 평면에서 이동객체를 인식하고 이동경로를 추적하는 시스템 구현이다. 시스템 구현은 카메라 이미지를 직접 처리하는 대신 두개의 라인 CCD 센서와 입력된 라인 이미지의 밝기를 비교하여 2차원 거리를 측정한다. 알고리듬은 이동객체감지, 경로추적과 좌표변환 기법을 적용한다. 객체의 이동경로를 효과적으로 감지하기 위하여 측정된 거리의 신뢰성을 평가하는 알고리즘을 개발하였다. 시스템을 구현하여 실험한 결과 5mm 인식율과 100ms 주기 이상의 이동객체경로 추적이 가능하였다.

Keywords

References

  1. Rafael C. Gonzalez and Richard E. Woods, Digital Image Processing, Prentice-Hall, 2002
  2. Randy Crane, A Simplified Approach to Image Processing, Prentice Hall , 1996
  3. B.V.K. Vijaya Kumar, Abhijit Mahalanobis, Richard Juday, Correlation Pattern Recognition, Cambridge Univ., 2005
  4. Chang-Hyun Sun, Young-Tak Kim 'Real-time tracking algorithm of a moving object using a CCD camera', Journal of The Frontier Technology Innovation Center, Vol.11 No.2, pp.33-44, 2002
  5. Jong-Man Kim, Hyong-Suk Kim, Sung-Joong Kim, 'New Calibration Technique of the Pixel Distance Parameter for the Depth Error Correction of Stereo Cameras', Journal of Chonbuk National University, pp.67-72, 1996. Vol.42
  6. Jain, et al, 'Displacement Measurement and its Application in Interframe Image coding', IEEE Transactions on Communications, vol. COM-29, No. 12, pp. 1799-1808, 1981
  7. Whitten, 'Scale Tracking and Deformable Sheet Models for Computational Vision', IEEE Transactions on Pattern and Machine Intelligence, Vol. 15, No. 7, pp. 697-706, 1993 https://doi.org/10.1109/34.221170
  8. Eckert, et al, 'Effect of Tracking Strategies on the Velocity Structure of Two dimensional Image Sequences', journal of the Optical society of America A, Optics and Image Science, vol. 10, No. 7, pp. 1582-1585, 1993 https://doi.org/10.1364/JOSAA.10.001582