Vehicle Recognition Confidence Alerts for Autonomous Driving
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Solution Overview
Problem
In autonomous driving systems, supervisors may overrely on AI outputs, leading to a lack of appropriate understanding of the confidence level in recognition tasks, which can impact safe vehicle operation.
Innovation Solution
A recognition state notification device is implemented within the autonomous driving system, featuring a confidence level calculation unit and a notification unit. This device calculates the confidence level of recognized targets and notifies the supervisor when the confidence level falls below a reference value, allowing for differentiated notification modes based on confidence levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If the autonomous driving system uses AI for recognition tasks, then the automation level is improved, but the supervisor's understanding of confidence level deteriorates
Solution Approach 1:
The notification unit provides feedback to the supervisor about the confidence level of AI recognition results. When the confidence level falls below a reference value, the system notifies the supervisor, creating a feedback loop that informs the supervisor about the reliability of AI recognition without reducing automation.
2Loss of information
If the system notifies the supervisor of all recognition targets, then the information completeness is improved, but the notification burden increases
Solution Approach 1:
The notification unit applies different notification strategies based on the confidence level of each recognition target. High-confidence targets are not notified, while low-confidence targets trigger notifications. This local differentiation reduces overall notification burden while maintaining information completeness for critical cases.
Solution Approach 2:
The system changes the notification parameter based on confidence level thresholds. By comparing confidence levels against reference values and adjusting notification behavior accordingly, the system maintains information completeness for uncertain recognitions while avoiding unnecessary notifications for high-confidence targets.
Data Source
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AI summary
A recognition state notification device includes: a confidence level calculation unit configured to calculate a confidence level in recognition of a recognition target recognized by a recognition unit; and a notification unit configured to notify a supervisor of a vehicle of a recognition target whose confidence level is equal to or lower than a reference value.