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Title:
CERTIFICATE AUTHENTICATION METHOD, APPARATUS AND DEVICE, AND READABLE STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2021/189850
Kind Code:
A1
Abstract:
A certificate authentication method, apparatus and device, and a readable storage medium, which relate to artificial intelligence. The method comprises: acquiring a first certificate picture and a second certificate picture obtained by photographing, under different light rays, a certificate to be authenticated, and respectively extracting, according to a preset authentication point of said certificate, a first authentication picture and a second authentication picture from the first certificate picture and the second certificate picture (S10); according to the first authentication picture and the second authentication picture, determining a plurality of image gradient variances, an average grayscale difference and an average luminance difference (S20); and according to the plurality of image gradient variances, the average grayscale difference and the average luminance difference, authenticating said certificate (S30). In addition, the present application further relates to blockchain technology. The first certificate picture and the second certificate picture can be stored in a blockchain. By means of processing the first certificate picture and the second certificate picture obtained by photographing under different light rays, and determining the plurality of image gradient variances, the average grayscale difference and the average luminance difference to authenticate a certificate, the authentication accuracy is improved.

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Inventors:
ZHANG GUOHUI (CN)
LEI CHENYU (CN)
SONG CHEN (CN)
Application Number:
PCT/CN2020/125010
Publication Date:
September 30, 2021
Filing Date:
October 30, 2020
Export Citation:
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Assignee:
PING AN TECH SHENZHEN CO LTD (CN)
International Classes:
G07D7/20
Foreign References:
CN1426016A2003-06-25
CN106803086A2017-06-06
CN107085883A2017-08-22
US20150003717A12015-01-01
Attorney, Agent or Firm:
SHENZHEN WORLD INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
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