Vehicle Face Authentication With Travel-State Threshold Adjustment
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Solution Overview
Problem
Existing face authentication systems for vehicles fail to account for changes in light environments, leading to authentication failures even when the same person is attempting to authenticate.
Innovation Solution
An occupant authentication apparatus that includes an authentication unit for face authentication and a determination unit that adjusts the authentication criteria based on the vehicle's traveling state, thereby adapting to changes in the light environment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If face authentication is performed using a fixed criterion, then authentication speed is maintained, but authentication reliability deteriorates in changing light environments
Solution Approach 1:
The patent applies the dynamics principle by making the authentication criterion adjustable rather than fixed. The determination unit dynamically changes the authentication criterion based on the vehicle's traveling state (moving or stopped). When the vehicle is moving, a lower threshold is used to accommodate light environment changes, while when stopped, a higher threshold maintains security. This resolves the contradiction by allowing the system to adapt its reliability level according to operational context without requiring complex real-time environmental sensing.
2Measurement precision
If face authentication is performed without considering traveling state, then system simplicity is maintained, but authentication accuracy deteriorates in moving vehicles
Solution Approach 1:
The patent changes the authentication criterion parameter based on the vehicle's traveling state to improve authentication accuracy. When the vehicle is moving, the system lowers the verification score threshold to account for light environment changes, thereby maintaining higher authentication accuracy. When stopped, it uses a higher threshold. This parameter adjustment approach improves accuracy without requiring complex environmental sensing or processing.
Data Source
AI summary
An authentication unit authenticates an occupant of a vehicle by face authentication. A determination unit changes a criterion for determination of success and failure in the face authentication according to a traveling state of the vehicle.