Encoding method, decoding method and system of two-dimensional code

A coding method, two-dimensional code technology, applied to the recording carrier used by the machine, electromagnetic radiation induction, instruments, etc., can solve the problems of unable to express more information and small information capacity, achieve large information capacity and improve accuracy Effect

Active Publication Date: 2013-11-20
人民数据管理(北京)有限公司
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  • Abstract
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Problems solved by technology

[0008] It can be seen from the above that the coding method of the two-dimensional code in the prior a

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  • Encoding method, decoding method and system of two-dimensional code
  • Encoding method, decoding method and system of two-dimensional code
  • Encoding method, decoding method and system of two-dimensional code

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Embodiment Construction

[0082] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0083] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0084] figure 1 It is a flow chart of an embodiment of the two-dimensional code encoding method of the present invention. Such as figure 1 As shown, the method may include:

[0085] Step 101: Obtain data inform...

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Abstract

The invention discloses an encoding method, a decoding method and a system of a two-dimensional code. The encoding method comprises the following steps of obtaining data information; processing the data information to obtain the byte type to-be-encoded information; carrying out first compression on the to-be-encoded information to obtain the first compressed data; according to the first compressed data, determining the information of the to-be-encoded data during second compression; according to the information of the to-be-encoded data, carrying out second compression on the first compressed data through an LDPC (low density parity check) code to obtain the second compressed data; according to the length of the second compressed data, the length of flag position and the length of the current version information, calculating the size of the to-be-generated two-dimensional code; and according to the size, the second compressed data, the flag information and the current version information, generating a two-dimensional image. The method or the system has the advantages that the capacity of information carried by the two-dimensional code is higher, and more information can be expressed in a limited geometric space.

Description

technical field [0001] The invention relates to the field of data processing, in particular to a two-dimensional code encoding method, decoding method and system. Background technique [0002] Barcode technology has developed very rapidly since it came out in the early 1970s. In just 20 years, it has been widely used in commercial circulation, warehousing, medical and health, library information, postal services, railways, transportation, production automation management and other fields. The application of bar code technology has greatly improved the speed of data collection and information processing, improved people's working and living environment, improved work efficiency, and made important contributions to the scientific and modernization of management. [0003] One-dimensional barcodes were used in the early development of barcode technology, expressing information through horizontally arranged lines and spaces. One-dimensional barcodes can carry a small amount of d...

Claims

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Application Information

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IPC IPC(8): G06K19/06G06K7/10
Inventor 王严博
Owner 人民数据管理(北京)有限公司
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