Dynamic Face Authentication Threshold Adjustment
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Solution Overview
Problem
Existing face authentication systems in multilevel security gates struggle to dynamically adjust collation thresholds across multiple gates, leading to difficulties in constructing systematic security gates that can flexibly adapt to varying operational states and ensure consistent security levels.
Innovation Solution
A face authentication apparatus that includes a face image acquisition unit, a collation unit, an operating state acquisition unit, and a threshold change unit, which acquires and adjusts the collation threshold based on the operating state of other gates, allowing for dynamic threshold adjustments to maintain security and convenience across multiple zones.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the collation threshold is automatically changed based on local gate usage patterns (as in Patent Literature 1 and 2), then the convenience and accuracy of individual gate authentication is improved, but the ability to construct systematic security gates by linking multiple gates deteriorates
Solution Approach 1:
The patent merges the threshold management of multiple gates into a unified system. The management server collects usage information from multiple gates and centrally determines collation thresholds, combining individual gate operations into a coordinated security system that maintains both local convenience and system-wide adaptability
Solution Approach 2:
The management server provides universal threshold management functionality across multiple gates. A single threshold value determined by the management server can be applied to multiple gates simultaneously, enabling the system to serve both individual gate authentication needs and overall security system coordination
2Adaptability or versatility
If fixed collation thresholds are used at each gate, then systematic security gates can be constructed by linking multiple gates, but the ability to adapt to varying operational states and ensure consistent security levels deteriorates
Solution Approach 1:
The patent implements dynamic threshold adjustment where the collation threshold is not fixed but changes based on collected usage information from multiple gates. The management server periodically updates thresholds according to current operational patterns, enabling the system to adapt to varying conditions while maintaining systematic coordination
Solution Approach 2:
The system establishes a feedback loop where usage information from multiple gates is collected, analyzed by the management server, and used to adjust collation thresholds. This feedback mechanism enables continuous adaptation to operational changes while maintaining system-wide security consistency
3Measurement precision
If each gate independently changes its threshold based on local usage, then authentication accuracy at each gate is improved, but the complexity of coordinating multiple gates deteriorates
Solution Approach 1:
The patent extracts the threshold determination function from individual gates and centralizes it in the management server. Each gate focuses on executing authentication with received thresholds, while the management server handles the complex task of analyzing usage patterns and determining appropriate thresholds, thereby reducing coordination complexity
Data Source
AI summary
A face authentication apparatus includes a face image acquisition unit that acquires a face image of a user who passes through a first gate provided at a first boundary between zones, a collation unit that performs face authentication on the face image on the basis of a threshold, an operating state acquisition unit that acquires an operating state of a second gate provided at a second boundary that is different from the first boundary, and a threshold change unit that changes the threshold on the basis of the operating state of the second gate.