Biometric Authentication Reordering for Login Time Reduction
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Solution Overview
Problem
Conventional image processing apparatuses experience increased login times due to inefficient ordering of biometric information, leading to longer matching times and potential for poor matches as the number of registered users grows.
Innovation Solution
The image processing apparatus reorders user record entries based on various conditions such as last login information, login count, user identification, attendance flags, and filtering criteria to optimize the authentication process, ensuring that the most likely users are matched first.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If reference biometric information is stored and searched in a predetermined order (e.g., chronological order of registration), then the system is simple to implement, but the time required for collation increases with increasing numbers of registered users
Solution Approach 1:
The patent applies dynamics by changing the search order from a static predetermined order to a dynamic order that is periodically adjusted based on actual authentication performance. The control unit changes the search order of reference biometric information based on collation results, making the system adapt to user authentication patterns over time, thereby reducing login time while maintaining simplicity
2Device complexity
If the system searches through all reference biometric information in predetermined order, then the authentication process is simple, but the likelihood of coincidental or inadvertent initial matching increases, leading to slower authentication
Solution Approach 1:
The patent implements feedback by using the results of collation operations to modify the search order for subsequent authentication attempts. The control unit analyzes which reference biometric information items are matched and uses this feedback to adjust the search sequence, thereby improving authentication accuracy by avoiding coincidental matches while maintaining process simplicity
Data Source
AI summary
An image processing apparatus of one embodiment includes an image processing unit and a controller. The controller receives biometric information for a user for a logon operation and re-orders user record entries in a table when a predetermined condition occurs. Each record entry in the table includes reference biometric information in association with user information. The re-ordering of the entries is based on user information stored in the user record entries. After the re-ordering of the user record entries in the table, the controller performs an authentication operation that includes comparing the received biometric information to reference biometric information in the re-ordered user record entries of the table until a match is determined.