Passage Authentication via Face-Card Matching
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Solution Overview
Problem
Conventional passage management systems face difficulties in accurately authenticating users when both authorized and unauthorized individuals are captured in the same photographed image or when an unauthorized user is carrying an authorized user's authentication medium, leading to compromised security.
Innovation Solution
A passage management system that includes a device capable of analyzing photographed images to specify the face image region of users carrying authentication media, comparing it with pre-stored face images to authenticate users as either authorized or unauthorized, thereby enhancing security measures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional passage management systems use simple authentication methods (face position verification or authentication medium reading), then the system complexity is low, but the security reliability deteriorates when multiple users are captured in the same image or when authentication media are shared
Solution Approach 1:
The patent segments the authentication process into multiple independent verification steps: (1) reading authentication medium information, (2) detecting face image regions in photographs, (3) matching face images with stored reference images, and (4) verifying positional relationships between face and body parts. This segmentation allows each component to perform a specific function, improving overall reliability without requiring a single complex system.
Solution Approach 2:
The patent merges multiple authentication methods into a unified system: combining authentication medium verification with facial recognition and pose verification. By integrating these methods, the system achieves higher security reliability while maintaining manageable complexity through coordinated operation of the combined components.
2Measurement precision
If the system authenticates users based on any detected face in the photographed image, then the authentication speed is fast, but the measurement precision deteriorates when multiple users are present
Solution Approach 1:
The patent applies local quality by focusing authentication on specific local features: the face image region corresponding to the authentication medium holder, and the positional relationship between this face and the authentication medium. This localized approach maintains high precision by excluding other users in the photograph while keeping the authentication process efficient.
Solution Approach 2:
The patent uses the authentication medium as an intermediary object to link the face detection with user identification. The authentication medium serves as a mediator that connects the visual detection (face position) with the identity verification (stored reference images), enabling accurate identification even when multiple users are present.
Data Source
AI summary
In a passage management computer program product, acquiring processing of identification information acquires identification information of a user read by a reading unit that is installed in a passage area and that reads the identification information from an authentication medium. Acquiring processing of photographed image acquires a photographed image of the passage area. Among one or more face image regions in the photographed image, specifying processing specifies a face image region of a user who is carrying the authentication medium as a passerby face image. When the passerby face image matches with a pre-stored face image corresponding to the identification information, authenticating processing authenticates the user who is carrying the authentication medium as an authorized person, and when the passerby face image does not match with the pre-stored face image, authenticates the user who is carrying the authentication medium as an unauthorized person.