ID Card Verification Using Printed Image Density Matching
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Solution Overview
Problem
Existing ID card verification systems fail to provide quick, low-cost, and secure identity verification, validity verification, and authenticity verification, especially for short-term use cases like visitor cards at events, where issuing procedures are complex and costly, and simple duplication methods are easily forgeable.
Innovation Solution
A verification system using an issuing apparatus and verification apparatus that prints verification images on instant film, incorporating face recognition and density characteristic analysis to verify authenticity, identity, and validity, with embedded electronic watermarks for secure verification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If IC memory is provided in the ID card to verify authenticity, then authenticity verification capability is improved, but issuing cost and procedure complexity increase
Solution Approach 1:
The patent replaces expensive, complex IC memory with simple printed verification images on ordinary cards. The verification image contains embedded authentication data that can be printed using standard printing techniques, eliminating the need for costly electronic components while maintaining security for short-term use cases like event visitor cards.
Solution Approach 2:
The patent extracts the essential authentication function from the IC memory and embeds it directly into the printed verification image. By taking out the core verification capability and representing it as a static printed pattern with embedded data, the system achieves authenticity verification without requiring physical electronic memory components.
2Reliability
If IC memory is provided in the ID card to verify authenticity, then authenticity verification capability is improved, but issuing cost increases
Solution Approach 1:
The patent replaces expensive IC memory with simple printed verification images on ordinary cards. The verification image contains embedded authentication data that can be printed using standard printing techniques, eliminating the need for costly electronic components while maintaining security for short-term use cases like event visitor cards.
3Ease of manufacture
If simple printing method is used to create ID card, then issuing cost and procedure are reduced, but forgery resistance deteriorates
Solution Approach 1:
The patent changes the parameter of verification from physical component presence (IC memory) to optical pattern recognition (printed verification image with embedded data). By altering how verification information is encoded and presented, the system achieves both simplicity and security through advanced image processing and pattern matching algorithms that detect forgery attempts.
Solution Approach 2:
The patent combines ordinary printing materials with sophisticated verification image structures. The verification image integrates multiple layers of information including embedded authentication data, complex patterns, and visual elements that work together to provide forgery resistance while using simple, inexpensive printing processes.
4Productivity
If verification image is printed on instant film, then issuance speed is improved, but verification complexity increases
Solution Approach 1:
The patent performs preliminary encoding of verification data into the verification image during the printing process itself. Authentication information is embedded directly into the printed pattern before the card is issued, allowing for rapid verification later without requiring complex real-time processing or additional hardware components.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables rapid, cost-effective issuance and secure verification of ID cards with integrated identity, validity, and authenticity checks, using instant film and density analysis to detect forgery, ensuring secure and efficient event access and payment processing.
Implementation Method 1
a first captured image obtained by capturing the verification image printed on the ID card via a camera
Implementation Method 2
verify authenticity of the ID card to be verified by comparing density characteristics of each of the first captured image acquired from the memory and the second captured image acquired from the camera
Data Source
AI summary
A verification apparatus for verifying an ID card is provided. The verification apparatus includes a processor configured to acquire, as a second captured image, an image obtained by capturing a verification image printed on an ID card to be verified, acquire, from a memory, a first captured image obtained by capturing the verification image and stored in the memory, and verify authenticity of the ID card to be verified by comparing density characteristics of each of the first captured image and the second captured image.