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A method and system for quickly locating the distance of a shot code

A distance and fast technology, applied in the field of two-dimensional code, can solve the problems of inability to decode correctly, low efficiency of shooting code, and difficulty in collecting two-dimensional code images.

Active Publication Date: 2018-02-02
BEIJING VISION BRILLIANCE TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] It can be seen that the user needs to constantly adjust the distance between the camera and the read QR code through experience. On the one hand, for users who lack relevant experience, if the user does not know the QR code image displayed on the mobile terminal screen Standard, even after many attempts, it is difficult to collect a QR code image that meets the standard, and thus cannot be decoded correctly; Two-dimensional codes have the disadvantage of low efficiency in shooting codes

Method used

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  • A method and system for quickly locating the distance of a shot code
  • A method and system for quickly locating the distance of a shot code
  • A method and system for quickly locating the distance of a shot code

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Embodiment Construction

[0084] The present invention is described in detail below in conjunction with accompanying drawing:

[0085] Such as figure 1 As shown, the present invention provides a method for quickly locating the distance of the beat code, comprising the following steps:

[0086] S1, generating an original two-dimensional code, the original two-dimensional code is a matrix composed of n*m two-dimensional code units; wherein, n and m are integers, and n and m are equal or not equal; and, each of the The code points of the two-dimensional code units are arranged in exactly the same way, and each of the two-dimensional code units has a unique reference code point. 1 ; The two-dimensional code unit is a square matrix formed by arranging several code points, and the side length of the square matrix is ​​D 1 ;

[0087] refer to figure 2 , is a matrix composed of 5*5=25 two-dimensional code units; by figure 2 It can be seen that the arrangement of code points of these 25 two-dimensional c...

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Abstract

The present invention provides a method and system for quickly locating the distance of the code, draw a circle or more than one section of arc on the boundary of the two-dimensional code, use the mobile terminal to locate, if the location is a circle, then directly calculate the circle area of ​​the circle; If more than one arc is located, the circle area of ​​the circle to which the arc belongs is calculated; then, by comparing the calculated circle area with the found optimal circle area range, it is automatically judged that the image acquisition device is compatible with the readable two The distance between two-dimensional codes, and a reminder to adjust the direction, can quickly get the distance between the image acquisition device that meets the decoding requirements and the read two-dimensional code, so as to collect a clear two-dimensional code image, which is convenient Subsequent decoding; to prevent users from blindly adjusting the distance between the image acquisition device and the read QR code, thereby improving the user experience.

Description

technical field [0001] The invention belongs to the technical field of two-dimensional codes, and in particular relates to a method and system for quickly locating the distance of a code shot. Background technique [0002] At present, two-dimensional codes are widely used in various industries such as clothing industry, food industry, medicine, Wujinjiaodian, etc., and there is a trend of further development and expansion. With the rapid development of mobile terminals such as mobile phones and communication technology, there is an increasing demand for people to directly read two-dimensional codes through mobile terminals such as mobile phones. [0003] In the prior art, when people use a mobile terminal such as a mobile phone to read a QR code, the process is as follows: (1) Capture the code: the camera of the mobile terminal faces the QR code to be read, and the image of the QR code is collected by the camera and displayed on the mobile terminal On the screen: the user o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K7/10G06K19/06
Inventor 邓伟刘燕李伟田德振
Owner BEIJING VISION BRILLIANCE TECH CO LTD
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