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Two-dimensional code positioning and detection method

A two-dimensional code and one-dimensional code technology, which is applied in the field of two-dimensional code positioning and detection, can solve the problems of low detection efficiency and influence on the accuracy of two-dimensional code, and achieve the effect of reducing the amount of data

Active Publication Date: 2021-11-23
谷东科技有限公司
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Problems solved by technology

[0002] Before the existing two-dimensional code in the picture is recognized, it is necessary to locate and detect the two-dimensional code in the photographed picture. The existing two-dimensional code positioning and detection methods mainly focus on the two-dimensional code During the detection of the three positioning marks on the two-dimensional code, if there is an error in the detection of any one of the positioning marks, the accuracy of the positioning and detection of the two-dimensional code will be affected, and when the picture The detection efficiency of this detection method is low when there are multiple QR codes in the

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  • Two-dimensional code positioning and detection method

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Embodiment Construction

[0061] Embodiments of the present invention will be described in detail below.

[0062]This embodiment discloses a method for positioning and detecting a two-dimensional code, such as figure 1 As shown, the location and detection method includes the following steps:

[0063] S001: Using an image acquisition device to acquire a first two-dimensional code image;

[0064] S002: Process the first two-dimensional code image to obtain a second two-dimensional code image;

[0065] S003: Carry out edge detection to the second two-dimensional code image, detect the edge information of each edge in the second two-dimensional code image, save the hierarchical tree relationship of each edge according to the edge information;

[0066] S004: Detect the edge information of the edge and the sub-edge information of the sub-edge of the edge in the hierarchical tree relationship successively, and judge whether to include a two-dimensional code area in the edge;

[0067] S005: Output edge info...

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Abstract

The invention discloses a two-dimensional code positioning and detection method, comprising the following steps: using an image acquisition device to acquire a first two-dimensional code image; processing the first two-dimensional code image to obtain a second two-dimensional code image; The second two-dimensional code image carries out edge detection, detects the edge information of each edge in the second two-dimensional code image, saves the hierarchical tree relationship of each edge according to the edge information; detects the edge information of the edge and the edge in the hierarchical tree relationship in sequence The sub-edge information of the sub-edge determines whether the edge contains a two-dimensional code area; and outputs the edge information of the edge containing the two-dimensional code area. The positioning and detection method of the two-dimensional code of the present invention can also realize accurate positioning and detection of the two-dimensional code area when there are multiple two-dimensional codes in the image, and at the same time, its detection efficiency and accuracy are high .

Description

technical field [0001] The invention relates to the field of information positioning and identification, more specifically, a method for positioning and detecting a two-dimensional code. Background technique [0002] Before the existing two-dimensional code in the picture is recognized, it is necessary to locate and detect the two-dimensional code in the photographed picture. The existing two-dimensional code positioning and detection methods mainly focus on the two-dimensional code During the detection of the three positioning marks on the two-dimensional code, if there is an error in the detection of any one of the positioning marks, the accuracy of the positioning and detection of the two-dimensional code will be affected, and when the picture The detection efficiency of this detection method is low when there are multiple two-dimensional codes in the image. Contents of the invention [0003] The object of the present invention is to provide a method for positioning an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K7/14G06T7/13
CPCG06K7/1443G06T7/13
Inventor 兰斌张栩华朱云
Owner 谷东科技有限公司
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