A positioning method for automatically selecting the feasible area for wheel two-dimensional code coding

Abstract

The invention provides a positioning method for automatically selecting a feasible area for two-dimensional code printing of a wheel hub, which includes the following steps: selecting a lighting environment with medium and dark brightness, and adjusting the camera to capture the inner cavity area of ​​the wheel hub; based on the image preprocessing method, the camera The inner cavity area of ​​the captured wheel hub image is preprocessed; combined with image morphology and contour detection algorithm, all possible two-dimensional code coding feasibility areas are separated; based on geometric measurement, all possible coding is feasible for the first time Based on the output area image, the second screening is performed based on the brightness pixel statistics. The method of the present invention can accurately select the coding area, has high accuracy, automatically identifies the feasible area of ​​the two-dimensional code coding, and has good reliability and real-time performance.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a positioning method for automatically selecting a feasible region for two-dimensional code printing based on an image processing algorithm for a hub. Background technique [0002] Under the framework of Industry 4.0, the perception and control technology of smart factories must have the characteristics of high speed, high precision, modularization, intelligence, and non-destructive perception, and be able to realize independent configuration and adaptive adjustment according to different tasks to meet customized and personalized products. However, the traditional perceptual control technology cannot meet the above requirements. Machine vision technology involves many disciplines such as neurobiology, computer science, image processing, pattern recognition and artificial intelligence. It has the characteristics of high efficiency, high precision, non-contact and easy int...

AI Technical Summary

Problems solved by technology

However, at present, most of the two-dimensional codes of the wheel hub rely on the workers to independently select the coding position for coding. The main reason is that the coding position of the wheel hub is generally selected in the flat inner cavity groove area, but due to the inner cavity groove area At the same time, it will also contain character areas such as trademarks. Human eyes need to recognize the areas without trademark characters before coding.

Obviously, this way of working is inefficient and cannot form a real automation of production.

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