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Two-dimension code label symbol creation method and apparatus and two-dimension code label structure

A two-dimensional code label and symbol technology, applied in the field of two-dimensional code label structure, can solve the problems of reducing recognition speed, reducing two-dimensional code information space, and reducing positioning accuracy, so as to improve information carrying capacity and big data information space , the effect of simplifying the arrangement rules

Inactive Publication Date: 2008-12-31
PEKING UNIV FOUNDER GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] (1) Control information such as image-finding graphics and positioning graphics occupy too much information space of two-dimensional codes, especially the efficiency of carrying effective information in small-area two-dimensional code patterns is greatly reduced
[0007] (2) The image-finding graphic rules are complex, the information utilization rate is not high, and the difficulty and calculation amount of the recognition algorithm are increased, and the recognition speed is reduced
[0008] (3) The information layout of the positioning graphics is not reasonable, which reduces the positioning accuracy of the positioning information on the data elements
[0009] (4) The control information and data arrangement rules of some two-dimensional codes such as image-finding graphics and positioning graphics are complex, which artificially complicates the reading rules
[0010] (5) Masking technology brings some convenience to reading and decoding, but controlling the black and white dots to a ratio close to 1:1 greatly reduces the information space for the practical application of two-dimensional codes

Method used

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  • Two-dimension code label symbol creation method and apparatus and two-dimension code label structure
  • Two-dimension code label symbol creation method and apparatus and two-dimension code label structure
  • Two-dimension code label symbol creation method and apparatus and two-dimension code label structure

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Embodiment 1

[0031] Such as figure 1 As shown, it is a flow chart of the symbol generation method of the two-dimensional code label in Embodiment 1 of the present invention. The process generates a basic two-dimensional code label, which specifically includes the following steps:

[0032] Step 101: Set a data area of ​​8 rows and 24 columns for the two-dimensional code label. Of course, in practical applications, the data area is not limited to 8 rows and 24 columns, but can be freely set according to different application environments. For example, when the amount of data to be carried is large, the data area can also be expanded appropriately. The size of the data area can be set through the version information.

[0033] Step 102: Add a row of data positioning information above and below the data area. The symbol sequence numbers of the data positioning information are from left to right, the upper row starts from S0, and the lower row starts from X0. The data location information sym...

Embodiment 2

[0042] Such as image 3 As shown, it is a flow chart of the symbol production method of the two-dimensional code label in embodiment 2 of the present invention. This embodiment expands the basic two-dimensional code label in embodiment 1 to generate different versions of the two-dimensional code label, including the following steps:

[0043] Step 201: Select 4 light-colored symbols with serial numbers S11, S15, X11, and X15 in the data positioning information symbols of the basic two-dimensional code label as the version information of the two-dimensional code label. The 4-digit binary symbol can represent 16 different versions of QR code label. The version information symbol is light color for data 0, dark color for data 1, and the version information of the basic two-dimensional code label in embodiment 1 is 0000.

[0044] Of course, the number of version information symbols is not necessarily four, and if more versions are desired, there may be more information symbols.

...

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Abstract

The invention discloses a method for generating a symbol of a two-dimensional code label. Two symbols with obviously different colors are adopted to form the two-dimensional code label which takes the shape of a rectangle as a whole. The method of the invention further includes that a data location information symbol is arranged on a group of opposite sides of the rectangle so as to configure a direction location information symbol in a way asymmetric to the central point of the rectangle and also configures a data information symbol in an alignment way between the two opposite sides of the rectangle. The invention also discloses a device for generating a symbol of a two-dimension code label and the device comprise a label generation module, a label location module and a data generation module. In addition, the invention also discloses a two-dimension code label structure. The invention can compress the amount of control information to a maximum extent so as to provide a large data information space under the condition that all the functions of the control information of a two-dimension code can be realized.

Description

technical field [0001] The invention relates to two-dimensional code technology, in particular to a method and device for generating symbols of two-dimensional code labels, and a two-dimensional code label structure. Background technique [0002] Due to the advantages of large amount of stored information, high security performance, low cost, easy error correction, easy reading and easy realization of automatic processing procedures, two-dimensional codes are widely used in more and more fields. At present, there are many code system standards for two-dimensional codes at home and abroad, such as PDF417, QR, Data Matrix, and Hanxin Code. Corresponding coding, decoding methods, reading methods, and error correction methods of various code systems are becoming more and more mature. However, to increase the content of effective information in the code system standards and improve the accuracy of reading two-dimensional codes, especially under unfavorable conditions such as ima...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K19/06
Inventor 曾培祥
Owner PEKING UNIV FOUNDER GRP CO LTD
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