Based on Mathematical Morphology Openning-door Status Detection

2002 
According to the running-train image, the paper first uses the method of the maximum square error method to make sure the threshold for image segmentation, then uses mathematical morphological operation to extract aim region in the binary image, finally calculate rectangle factor to distinguish whether the aim region is rectangle, and decides whether train door is open, and solve the problem of safe-status detecting when train is running. The algorithm can overcome the affect of saltpepper and speckle noise, so needn't pretreat the image.
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