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A method and system for identifying anti-counterfeiting information of certificates

A certificate and authenticity technology, which is applied in the field of identification method and identification system of anti-counterfeit information, can solve the problems of difficult identification of anti-counterfeit information, achieve good rotation invariance, avoid character occlusion interference, and have high accuracy

Active Publication Date: 2022-04-26
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is: due to the rapid replacement of certificates and various types, it is difficult to identify anti-counterfeit information

Method used

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  • A method and system for identifying anti-counterfeiting information of certificates
  • A method and system for identifying anti-counterfeiting information of certificates
  • A method and system for identifying anti-counterfeiting information of certificates

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0045] An embodiment of the present invention provides a method for identifying the anti-counterfeiting information of a document, which is used to identify the authenticity of the document, wherein the document includes but is not limited to a passport, a Hong Kong and Macao travel permit, a resident ID card or a Taiwan compatriot certificate, etc., and the identification method includes . Such as figure 1 As shown, the identification method specifically includes:

[0046] Step 1: Obtain the image of the certificate containing the anti-counterfeiting information.

[0047] Wherein, the document image is a multi-spectral image, including a document image under white light, a document image under purple light, and a document image under red light.

[0048] Among them, the anti-counterfeiting information includes machine-readable codes, fluorescent fibers, personal photos, certificate codes, visible reading areas, and ultraviolet patterns.

[0049] Step 2: Correct and segment ...

Embodiment 2

[0067] In conjunction with Example 1, this example mainly describes the identification process of ultraviolet patterns.

[0068] In the actual application scenario, for the document image under ultraviolet light, the foreground of the document image is an ultraviolet pattern. For example, in the Chinese electronic passport, the foreground of the passport image is a colored pattern. UV patterns play an important role because of their unique texture structure and color information, which are often difficult to reproduce. Due to the rapid replacement of certificates in various countries and the variety of certificate types, it is difficult for the authentication of ultraviolet patterns to keep up with the changing needs, and the traditional detection process is difficult to adapt to diverse patterns. In addition, the ultraviolet patterns in most countries are covered by black fonts, which will lead to deviations in the authenticity results of the ultraviolet patterns. How to eli...

Embodiment 3

[0140] With reference to Embodiment 1, this embodiment mainly describes the identification process of the logo image.

[0141] In the image of the document, some countries will add logos. In the case of image structures such as personal information or personal photos, the small shape of these marks makes it difficult to identify the authenticity of the image, and these marks are usually located around other image structures, which greatly increases the difficulty of detecting marks.

[0142] In order to solve the aforementioned problems, in a preferred solution, this embodiment identifies the image to be identified based on the circular projection vector, which has good rotation invariance and improves the accuracy of forgery identification.

[0143] Before introducing the solution of this embodiment, the terms appearing in this embodiment are first explained accordingly, as follows.

[0144] The original image involved in this embodiment refers to: the area corresponding to ...

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Abstract

The present invention relates to the field of information security authentication, in particular to a method and system for identifying anti-counterfeiting information of certificates. The identification method includes: obtaining a certificate image containing anti-counterfeiting information; correcting and segmenting the certificate image to obtain multiple anti-counterfeiting areas, respectively Identify multiple anti-counterfeiting areas, and sequentially output the identification results corresponding to each anti-counterfeiting area; combine the identification results corresponding to each anti-counterfeiting area to determine the authenticity of the certificate image. This identification method is more comprehensive in the detection of anti-counterfeiting information, and can cover the anti-counterfeiting detection of various documents. Compared with the traditional method, it is more efficient and accurate, and improves the security as a whole.

Description

【Technical field】 [0001] The invention relates to the field of information security certification, in particular to a method and system for identifying anti-counterfeiting information of certificates. 【Background technique】 [0002] As a medium for storing and authenticating personal information, there are many types of documents, including passports, ID cards, Hong Kong and Macau passes, etc. The anti-counterfeiting information identification of its multispectral images is widely used in customs, airports, railway stations, security checkpoints and other scenarios. In recent years, China's international exchanges have been increasing, which has brought great challenges to departments that need to identify the authenticity of documents; the variety of types of documents and the different identification points of various documents make it more difficult to identify anti-counterfeiting information on document images. At present, in China, manual and machine methods are general...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06V10/26G06V10/24G06V10/75G06K9/62
CPCG06V10/243G06V10/267G06V10/751G06F18/22
Inventor 尤新革彭勤牧王小川王梓宇
Owner HUAZHONG UNIV OF SCI & TECH
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