Printed Facial Authentication Code for Offline ID Card Verification
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Solution Overview
Problem
Existing authentication systems, such as described in JP2014-222445A, face challenges in usability for individuals without mobile terminals or those unfamiliar with their operation, and cannot perform authentication in environments without communication connectivity.
Innovation Solution
An authentication system that issues an ID card with a printed authentication code and facial image, using a printer-equipped digital camera to capture and print facial features, and a separate authentication unit to decode and collate facial information for verification, independent of network connectivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If authentication code is transmitted to mobile terminal and displayed, then authentication can be performed with digital devices, but it becomes difficult for persons without mobile terminals or unfamiliar with device handling
Solution Approach 1:
The patent creates a physical copy of the authentication code by printing it on an ID card instead of requiring digital display on mobile terminals. The authentication code is generated and printed on a physical card medium, allowing users without smartphones or digital literacy to possess and use authentication credentials in a tangible, accessible format.
Solution Approach 2:
The patent uses a simple, inexpensive physical ID card as the authentication medium rather than requiring expensive mobile devices. The card serves as a disposable or replaceable authentication tool that is accessible to all users regardless of their digital device ownership or technical proficiency.
2Reliability
If authentication requires mobile terminal with communication, then digital authentication can be performed, but authentication cannot be performed in places without communication environment
Solution Approach 1:
The patent extracts the authentication code from the communication-dependent mobile terminal environment and embeds it directly into a physical ID card. By printing the authentication code on the card, the system removes the dependency on network connectivity and mobile devices, allowing authentication to function in any environment regardless of communication availability.
Solution Approach 2:
The authentication code is pre-generated and printed on the ID card before the authentication event occurs. This preliminary action of creating a physical copy of the authentication credentials ensures that the user has immediate access to authentication information without requiring real-time network connectivity or digital device operation during the authentication process.
3Reliability
If facial feature information is encoded in authentication code, then security is enhanced, but complexity of decoding and verification increases
Solution Approach 1:
The patent replaces complex cryptographic encoding of facial features with a simpler encoding scheme where facial feature information is represented in the authentication code through a more straightforward mapping. The verification process uses direct comparison of extracted facial features against the encoded information, avoiding complex decryption algorithms while maintaining security through the uniqueness of facial biometric data.
Data Source
AI summary
A first processor is configured to acquire a first facial image of the user; extract first facial feature information from the first facial image; generate an authentication code representing the first facial feature information; and cause a printer to print the authentication code and a display facial image of the user on a card medium to create the ID card, and a second processor is configured to acquire the authentication code printed on the ID card possessed by the user and a second facial image of the user; decode the first facial feature information from the authentication code; extract second facial feature information from the second facial image using the same algorithm as used in a case of extracting the first facial feature information from the first facial image; collate the first facial feature information with the second facial feature information; and perform the determination based on a collation result.