An Automatic Assembling System for Sealing Rings Based on Machine Vision

Table 1

The parameters of related algorithm.

	Type of threshold	Range	Unit
The recognition of the sealing ring	The inverse ratio of the accumulator resolution to the image resolution	dp = 2
	The minimum distance between the centers of the detected circles	min_dist = 20	Number of pixels
	The higher threshold of Canny edge detector (the lower one will be twice smaller)	param1 = 30
	The accumulator threshold at the center detection stage	param2 = 50	The number of voting instances
	The minimum circle radius	min_radius = 23	Number of pixels
	The maximum circle radius	max_radius = 27
	Binarization	= 105	Gray value
	The black pixels within the binarized image	= 1	Number of pixels
The recognition of the sealing ports	Binarization	= 69	Gray value
	The area of the contour		Number of pixels
	The white pixels within the contour
	The points of the contour boundary
	The radius of the fitted circle