Method and device for generating and identifying dynamic two-dimensional codes

A dynamic two-dimensional code and generating device technology, applied in the field of image processing, can solve problems such as low security, and achieve the effects of enhancing security, improving anti-copying ability, and improving copying difficulty.
CN107451643AInactive Publication Date: 2017-12-08BEIHANG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIHANG UNIV
Publication Date
2017-12-08
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a method and device for generating and identifying dynamic two-dimensional codes. The method includes: acquiring a first two-dimensional code according to coding information and correction information, wherein the correction information is information used for correcting the coding information, and the first two-dimensional code is composed of color blocks; tampering the color blocks in the first two-dimensional code to obtain N second two-dimensional codes, wherein the second two-dimensional codes are defective first two-dimensional codes, the defective degree of the coding information corresponding to M second two-dimensional codes is greater than the allowable defective degree corresponding to the correction information, N and M are integers, and 1 <= M <= N; acquiring a dynamic two-dimensional code according to the first two-dimensional code and the N second two-dimensional codes, wherein the dynamic two-dimensional code includes the first two-dimensional code and the second two-dimensional codes displayed according to a preset timing sequence. The method and device dynamically display the recognizable two-dimensional codes and the unidentifiable two-dimensional codes, improve the anti-imitation capability of the two-dimension codes, enhance the difficulty of copying the two-dimension codes, and enhance the safety of the coding information in the two-dimension codes.
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Description

technical field

[0001] The invention relates to image processing technology, in particular to a method and device for generating and identifying a dynamic two-dimensional code. Background technique

[0002] With the popularity of smart phones, in order to ensure information security and simplify operations, two-dimensional codes have been frequently used in various commercial activities, such as mobile scanning code payment, two-dimensional code electronic vouchers, real-time data downloads and product anti-counterfeiting two-dimensional codes Wait.

[0003] A two-dimensional code, also known as a two-dimensional barcode, is usually a black and white image formed by arranging multiple color blocks on a two-dimensional plane. The most common matrix-type two-dimensional code generation method is: to encode the data to be represented, correction information and other format information to obtain a binary string composed of 0 and 1, and then further convert the binary string in...

Claims

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