Authenticity checking system and method
By capturing images on information media and generating image differentials, and utilizing concentration change prediction and spatial frequency characteristics, the problem of reduced verification accuracy during the use of simple information media is solved, achieving high-precision authenticity verification.
CN116671095BActive Publication Date: 2026-07-10FUJIFILM CORP
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- FUJIFILM CORP
- Filing Date
- 2022-01-14
- Publication Date
- 2026-07-10
AI Technical Summary
Technical Problem
Existing simple information media are easily contaminated or damaged during use, which reduces the accuracy of verification and makes it difficult to efficiently verify their authenticity.
Method used
By using a issuing device and a verification device, a camera is used to capture images for verification on the information medium, image differences are generated and corrected, and the verification area is determined based on concentration change prediction and spatial frequency characteristics, thus achieving high-precision authenticity verification.
Benefits of technology
It achieves high-precision authenticity verification on simple information media, effectively identifies counterfeit or damaged information media, and improves the accuracy of the verification system.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN116671095B_ABST
Abstract
The issuance device of the present application has a first processor that acquires an image obtained by capturing, with a camera, a collation image printed on an information medium, as a first captured image. The collation device has a second processor that acquires an image obtained by capturing, with a camera, a collation image printed on an information medium of a collation target, as a second captured image, predicts a density change at a time when the second captured image is acquired, based on an elapsed time from a time when the first captured image is acquired, thereby generating a corrected image in which the first captured image is subjected to density correction, and determines a collation region in which the first captured image and the second captured image are collated, based on a difference image obtained by acquiring a difference between the second captured image and the corrected image for each pixel.
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