Method and system for identifying hollow adhesion verification codes

A recognition method and verification code technology, applied in the recognition method and system field of hollow sticky verification codes, can solve problems such as machine misjudgment, affecting user traffic efficiency and experience, etc.

Active Publication Date: 2018-06-15
GUANGZHOU DUOYI NETWORK TECH +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the use of hollow glued characters to realize verification and recognition is more conducive to accurate recognition by the human eye. However, since hollow glued characters have not been widely used in the identification of verification codes, the machine's recognition system for hollow glued characters is not yet mature.

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  • Method and system for identifying hollow adhesion verification codes
  • Method and system for identifying hollow adhesion verification codes
  • Method and system for identifying hollow adhesion verification codes

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Embodiment Construction

[0064] In order to solve the problem that the hollow adhesion verification code cannot be accurate in the prior art and affect the user's traffic efficiency and experience, the present invention provides a recognition method for the hollow adhesion verification code, by performing image preprocessing on the original image of the hollow adhesion verification code ——Convert to grayscale image, remove interference part, remove blank area, position correction processing, single character cutting processing, dimension reduction processing and use data model to realize recognition, not only applicable to the characteristics that only have hollow characters and characters will have sticking The recognition of simple hollow adhesion verification codes can also be applied to the recognition of complex hollow adhesion verification codes with characteristics such as inconsistent character sizes, interference lines, characters with multiple colors, and characters appearing to rotate. Herei...

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Abstract

The invention relates to a method and system for identifying hollow adhesion verification codes. Image preprocessing is carried out on original images of hollow adhesion verification codes to form grayscale images one by one after conversion; interference part removing and blank area removing are carried out successively; and position correction processing, single character cutting processing, dimension reduction processing, and identification based on a data model are carried out. Therefore, the method and system not only are suitable for identification of simple hollow adhesion verificationcodes only having character hollow and adhesion characteristics but also are suitable for identification of complex hollow adhesion verification codes having characteristics of character size inconsistency, interference line existence, many character colors, and character rotation. The method and system can be applied to identification of simple hollow adhesion verification codes and complex hollow adhesion verification codes; the identification accuracy and the recognition efficiency of the hollow adhesion verification codes are improved; and the user passing efficiency and experience are improved.

Description

technical field [0001] The invention relates to the field of computers, in particular to a recognition method and system for a hollow-bonded verification code. Background technique [0002] The verification code is a public automatic program that distinguishes whether the user is a computer or a human. It can prevent malicious cracking of passwords, swiping tickets, flooding forums, etc., and effectively prevents a hacker from continuously logging in to a specific registered user with a specific program brute force cracking method. try. With the development of Internet technology, the use of verification codes to achieve verification and access has been used by many websites, so the identification of verification codes has widely appeared in the public eye. Among them, the recognition of hollow glued verification codes is more difficult than the recognition of traditional solid verification codes, because an important feature of hollow verification codes is to use outlines ...

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Application Information

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IPC IPC(8): G06K9/20G06K9/34
CPCG06V10/225G06V30/153G06V10/267
Inventor 徐波
Owner GUANGZHOU DUOYI NETWORK TECH
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