Local Face Data Caching for MFP Authentication Speed
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Solution Overview
Problem
Existing face recognition systems in information processing apparatuses, such as multifunctional peripherals, face inefficiencies in user authentication due to long processing times and increased network traffic when continuously collating face data in an authentication server, which affects operational practicality and security.
Innovation Solution
Implementing an information processing apparatus with an image capturing unit, an extracting unit, a verification unit, an authentication unit, and a storing unit that temporarily stores authenticated face data, allowing for local verification and reducing reliance on continuous server authentication, thereby minimizing unnecessary network requests and improving processing speed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If face data of all users in the recognition area is continuously collated in the authentication server, then user authentication reliability is improved, but processing time increases and network traffic increases
Solution Approach 1:
The patent divides the authentication process into two segments: local verification using cached face data for users already authenticated, and server collation only for new or unauthenticated users. This segmentation reduces the scope of continuous server communication while maintaining authentication reliability for recognized users.
Solution Approach 2:
The system performs preliminary authentication and caching of face data for users before they need to use the MFP. By pre-authenticating users and storing their face data locally, the system avoids repeated server collation operations, reducing processing time while maintaining security.
2Reliability
If face data is continuously collated in the authentication server, then authentication accuracy is improved, but network traffic increases
Solution Approach 1:
The patent extracts and caches face data of authenticated users locally in the MFP, separating the authentication function from continuous server communication. This extraction allows the system to maintain authentication accuracy for recognized users without continuously transmitting data to the server, thereby reducing network traffic.
Solution Approach 2:
The system creates a local copy of face data for authenticated users and stores it in the MFP's memory. This copy allows the system to verify user identity locally without repeatedly querying the server, reducing network traffic while maintaining authentication accuracy.
3Productivity
If face data is stored in the MFP for local verification, then processing speed is improved, but security risk increases
Solution Approach 1:
The patent applies partial action by storing only the necessary face data of authenticated users locally, rather than all user data. The system stores face data selectively based on authentication status and usage context, minimizing the amount of sensitive data retained while maintaining processing speed benefits.
Solution Approach 2:
The system implements periodic verification and updates of cached face data against the server's authentication database. By periodically refreshing the local cache and verifying data validity, the system maintains processing speed while mitigating security risks through continuous validation.
Data Source
AI summary
A multifunction printer captures an image, extracts face data of each person from the captured image, verifies whether each person has been authenticated based on the extracted face data, transmits face data of a person that cannot be verified to have been authenticated to an external apparatus, requests authentication of that person, temporarily stores face data of each authenticated person, collates extracted face data of each person with stored face data, and verifies whether each person has been authenticated.