Algorithm research on location of bottle mouth and bottom in intelligent empty bottle inspection system

Intelligent empty bottle inspection system is an important inspection equipment of empty bottle before filling beer, it is a blend of machine vision, precision machine and realtime control. They need to cooperate perfectly to achieve the desired effect. In the design of the empty bottle inspection system, one of the key technologies is the location of the bottle mouth and bottom which affect the speed and accuracy of the inspection. In this paper, first of all, we process the image of the bottle mouth and bottom by de-noising, contrast enhancement and edge detection, then analyze the location of the bottle mouth and bottom. Finally, we put forward different location algorithms for the bottle mouth and bottom by their different characters. Experiments show that this method can effectively improve the precision of the location of the bottle mouth and bottom and it has great practical value.