Biometric Feature Data Management with Automatic Expiration
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Solution Overview
Problem
Existing systems for managing feature amount data, such as biometric information, face challenges in balancing the need for repeat analysis with privacy concerns, as storing such data for long periods is undesirable.
Innovation Solution
A feature amount management apparatus and method that includes a data generation unit, an ID generation unit, and a deletion unit, which generates feature amount data from images, assigns identification information with an expiration date, and deletes the data when the expiration date is reached, ensuring data is temporarily stored and then removed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If feature amount data is stored for a long period to enable repeat analysis, then the ability to identify repeat customers is improved, but privacy concerns worsen
Solution Approach 1:
The system performs preliminary action by setting an expiration date at the time of data storage. The storage period is predetermined and automatically enforced, eliminating the need for continuous manual management. This preliminary设定 of the storage duration resolves the contradiction by establishing a fixed, privacy-friendly storage period that enables repeat customer identification while automatically limiting long-term data retention risks.
2Object-affected harmful factors
If feature amount data is deleted after expiration to protect privacy, then privacy protection is improved, but the ability to perform repeat analysis worsens
Solution Approach 1:
The system implements feedback by continuously monitoring the expiration dates of stored feature amount data. The deletion unit automatically identifies and deletes data that has expired, creating a closed-loop system that maintains the optimal balance between privacy protection and analytical utility. This feedback mechanism ensures that data is retained only for the necessary period, preventing both premature deletion and excessive retention.
3Object-affected harmful factors
If feature amount data is automatically deleted to manage privacy, then privacy management is improved, but data management complexity worsens
Solution Approach 1:
The system applies self-service by enabling automatic deletion of expired feature amount data without requiring manual intervention. The deletion unit autonomously identifies data past its expiration date and removes it, making the privacy management process self-regulating. This eliminates the need for complex manual tracking and deletion workflows, reducing operational complexity while maintaining strong privacy protections.
Data Source
AI summary
According to one embodiment, a feature amount management apparatus includes a data generation unit, an ID generation unit, a storage unit, and a deletion unit. The data generation unit generates, from an image, feature amount data indicating a feature amount of biometric information of a person. The ID generation unit generates identification information including expiration date information used for determining an expiration date of the feature amount data. The storage unit stores the feature amount data in correlation with the identification information. The deletion unit deletes the feature amount data when the feature amount data pass the expiration date.