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.

Inactive Publication Date: 2017-12-08
BEIHANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Existing QR codes are easy to be imitated and have low security

Method used

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

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Embodiment Construction

[0047] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is only some embodiments of the present invention, but not all embodiments. 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.

[0048] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the present invention and the above drawings are used to distinguish similar objects and not necessarily Describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances ...

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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.

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K19/06G06K7/14
Inventor 张政阳方宁
Owner BEIHANG UNIV
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