Two-dimensional code identification method and system based on connected domain analysis, device and medium

Abstract

The invention discloses a two-dimensional code recognition method and system based on connected domain analysis, a device and a medium, and the method comprises the steps: detecting the edge of a two-dimensional code in a to-be-recognized image after receiving the to-be-recognized image, and obtaining the to-be-recognized two-dimensional code; determining an image searching graph in the to-be-identified two-dimensional code by using a connected domain analysis algorithm; determining a coordinate point corresponding to the pixel value mean value in the image searching graph as a positioning point; determining a correction point; and performing rotation correction on the to-be-identified two-dimensional code based on the positioning point and the correction point, analyzing the to-be-identified two-dimensional code after rotation correction, and outputting corresponding information. After the two-dimensional code to be identified is acquired, the image searching graph is firstly determined, and the coordinate point corresponding to the pixel value mean value in the image searching graph is determined as the positioning point, so that the problem of point loss possibly caused by searching the positioning point by point when the shooting quality of the two-dimensional code is poor is avoided. The connected domain analysis algorithm is used to confirm the image searching graph, so that the positioning point determined from the image searching graph is more accurate, and the identification precision of the subsequent two-dimensional code is improved.

Description

technical field [0001] The present application relates to the technical field of image recognition, more specifically, to a method and system for two-dimensional code recognition based on connected domain analysis, an electronic device, and a computer-readable storage medium. Background technique [0002] Bar code technology is an automatic identification technology that has emerged with the rapid development of computer science and information processing technology. It uses photoelectric scanning equipment to automatically collect and input data, and can obtain electronic data quickly, conveniently and reliably. [0003] Since the traditional one-dimensional code came out, it has attracted widespread attention. It has developed rapidly and has been widely used in ticketing, media, logistics, medical care, product traceability and other fields. The use of one-dimensional codes can greatly improve the speed of information collection and processing, but one-dimensional codes...

AI Technical Summary

Problems solved by technology

In the recognition of two-dimensional codes, it is necessary to identify the positioning points of the two-dimensional codes to determine the position of the two-dimensional codes. Usually, the positioning points are determined by point-by-point search. It may be due to problems such as missing points that the determination of the positioning point is not accurate enough, which affects the recognition accuracy of the subsequent QR code

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