Method for detecting ampoule bottle appearance quality through medical visual inspection robot

Abstract

The invention discloses a method for detecting ampoule bottle appearance quality through a medical visual inspection robot. The method comprises the steps of (1) acquiring an ampoule bottle image, and preprocessing the image through a median filter; (2) solving an ampoule bottle mimic symmetry line by employing a threading method to obtain a rotating angle alpha; (3) rotating the image by using a bilinear interpolation-summation method; (4) solving a symmetry center line, wherein the intersection of the symmetry center line and the head is a symmetry center point h0; (5) solving a head edge point; (6) enabling the outer curve at the head of the ampoule bottle to have the characteristic of a symmetrical variable trend in a lower parabola shape, and judging whether the ampoule bottle appearance wire-drawing quality is qualified; (7) positioning a black head detection rectangular area; (8) judging whether the black head ampoule bottle appearance is qualified by employing a difference method; and (9) integrating the appearance drawing and black head quality detection result. According to the method, the problems that the manual detection efficiency is low, the consistency is low and the leakage detection rate is high and the like are overcome, and the degree of automation and product quality of the ampoule bottle medicine production are improved.

Description

technical field [0001] The invention belongs to the technical field of machine vision detection robots in the pharmaceutical industry, in particular to a method for detecting the appearance quality of ampoule bottles of a medical vision detection robot. Background technique [0002] In the process of pharmaceutical production, when the ampoule is sealed, the glass of the bottle mouth of the ampoule is melted and sealed by flame high temperature. However, in the process of glass melting and drawing, due to the influence of the position of the drawing pliers, the size of the combustion flame, the rotation speed of the bottle, etc., the molten glass on the top of the ampoule may shrink unevenly, hold wire, bubble head, flat head, pointed head, etc. Abnormal products such as broken heads and hook heads; at the same time, when filling, there will inevitably be a phenomenon of liquid medicine dripping, and the liquid medicine dripping at the mouth of the bottle is carbonized by th...

AI Technical Summary

Problems solved by technology

[0005] The invention provides a method for detecting the appearance quality of an ampoule bottle by a medical visual inspection robot, and its purpose is to overcome the problems of low manual detection efficiency, poor consistency and low precision in the process of detecting the appearance of ampoule bottles and blackheads in the prior art

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