• a robust omnidirectional vision sensor for soccer robots

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 896
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
      how to make robot vision work robustly under varying lighting conditions and without the constraint of the current color-coded environment are two of the most challenging issues in the robocup community. in this paper, we present a robust omnidirectional vision sensor to deal with these issues for the robocup middle size league soccer robots, in which two novel algorithms are applied. the first one is a camera parameters auto-adjusting algorithm based on image entropy. the relationship between image entropy and camera parameters is verified by experiments, and camera parameters are optimized by maximizing image entropy to adapt the output of the omnidirectional vision to the varying illuminatio . the second one is a ball recognition method based on the omnidirectional vision without color classification. the conclusion is derived that the ball on the field can be imaged to be an ellipse approximately in our omnidirectional vision, and the arbitrary fifa ball can be recognized by detecting the ellipse imaged by the ball. the experimental results show that a robust omnidirectional vision sensor can be realized by using the two algorithms mentioned above.

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