A generation and recognition method of a stacked two-dimensional code with a positioning area
An identification method and two-dimensional code technology, which is applied to the recording carrier used by the machine, the instrument, the induction recording carrier, etc., can solve the problems of not being able to decode quickly, not being able to recognize and decode normally, and affecting it, so as to achieve convenient code scanning operation and improve Recognition and decoding efficiency, high efficiency effect
Active Publication Date: 2020-06-30
福州觉感视觉软件科技有限公司
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Problems solved by technology
Since the current two-dimensional code is a separate code area, it is greatly affected by the environment, such as the scanning position directly affects the light angle, etc., so it is necessary to go to a specific position to scan the code, and cannot achieve fast decoding in multiple positions. When the QR code is partially damaged or the surface is uneven, it cannot be recognized and decoded normally
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[0036] Such as Figure 1 to Figure 3 As shown, a stacked two-dimensional code with a positioning area includes a plurality of code areas arranged in an equidistant matrix and a positioning area for separating each of the code areas (see figure 1 in Part B);
[0037] Each of the code areas includes a plurality of rows and columns of identification units arranged in a matrix, and in the same code area, a row of blank units is provided between each two adjacent rows of identification units, and each adjacent two columns of identification units There is a column of blank cells in between;
[0038] Each of the blank units is a 3×3 module composed of white modules;
[0039] Each identification unit is a 3×3 module composed of a black module and a white module, the 3×3 module of the identification unit includes two black modules and 7 white modules, and the two black modules in the same identification unit The distance between the modules is at least one white module, and each ide...
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The invention provides a stacked two-dimensional code provided with positioning zones. The stacked two-dimensional code comprises code zones, which are in an isometric matrix arrangement; and the positioning zones used for separating the code zones. Every code zone comprises identifying units, which are in a matrix arrangement, and a row of blank units is arranged between every two adjacent rows of identifying units, and a column of blank units is arranged between every two adjacent columns of identifying units. Every blank unit is a 3*3 module formed by white modules. Every identifying unit is a 3*3 module formed by black modules and white modules. The 3*3 module of every identifying unit comprises two black modules and seven white modules, and the distance of at least one white module is arranged between the two black modules of the same identifying unit, and every identifying unit is used to store a four-bit binary string. Every positioning zone is formed by arranging the identifying units and the blank units at intervals, and blank cells are arranged among the positioning zones and the code zones. The invention also provides the generating and identifying method of the stacked two-dimensional code provided with the positioning zones, and multidirectional high-efficiency code-scanning experience is realized.
Description
technical field [0001] The invention relates to two-dimensional code technology, in particular to a method for generating and identifying a stacked two-dimensional code with a positioning area. Background technique [0002] Two-dimensional codes are widely used in various industries because of their large storage capacity, high confidentiality, high traceability, and strong damage resistance. At present, most common two-dimensional codes are matrix codes (such as DM codes and QR codes), which use black and white blocks to represent binary 1 and 0, and stack black and white blocks in a certain combination to form a two-dimensional code. The code includes a positioning part for positioning and a data part for storing information. However, due to the dense color blocks of the existing matrix two-dimensional code, in order to improve decoding efficiency, it is generally necessary to select an independent, clean and flat area. Place the code area. Since the current two-dimensio...
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IPC IPC(8): G06K7/14G06K19/06
CPCG06K7/1417G06K19/06037G06K19/06046
Inventor 林宇吴闽帆黄旭东
Owner 福州觉感视觉软件科技有限公司