Abstract
A new automatic extraction-algorithm of parts bounding box is proposed for the purpose of improving the image processing speed.The reliability of this algorithm under isolated nosie and the effect of different threshold on the experimental result is analyzed.The anti-noise template is developed suitable for the chain board.The geometric parameters of circle in chain board are obtained by least square method and minimum zone reference circle method.The experiment result shows that this algorithm can inhibit isolated nosie well and the bounding box including target image can be found fast and accurately.
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