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http://dx.doi.org/10.5302/J.ICROS.2009.15.5.473

Vision-based AGV Parking System  

Park, Young-Su (POSTECH 전자전기 공학과)
Park, Jee-Hoon (POSTECH 전자전기 공학과)
Lee, Je-Won (POSTECH 전자전기 공학과)
Kim, Sang-Woo (POSTECH 전자전기 공학과)
Publication Information
Journal of Institute of Control, Robotics and Systems / v.15, no.5, 2009 , pp. 473-479 More about this Journal
Abstract
This paper proposes an efficient method to locate the automated guided vehicle (AGV) into a specific parking position using artificial visual landmark and vision-based algorithm. The landmark has comer features and a HSI color arrangement for robustness against illuminant variation. The landmark is attached to left of a parking spot under a crane. For parking, an AGV detects the landmark with CCD camera fixed to the AGV using Harris comer detector and matching descriptors of the comer features. After detecting the landmark, the AGV tracks the landmark using pyramidal Lucas-Kanade feature tracker and a refinement process. Then, the AGV decreases its speed and aligns its longitudinal position with the center of the landmark. The experiments showed the AGV parked accurately at the parking spot with small standard deviation of error under bright illumination and dark illumination.
Keywords
AGV; landmark; object tracking;
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