Information processing device, information processing method, and recording medium
The described system optimizes biometric authentication by estimating error distributions and adjusting thresholds accordingly, enhancing security and accuracy by addressing fluctuations in image quality and environment.
WO2026115626A1PCT designated stage Publication Date: 2026-06-04NEC CORP
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- NEC CORP
- Filing Date
- 2024-11-26
- Publication Date
- 2026-06-04
AI Technical Summary
Technical Problem
Existing biometric authentication systems struggle to dynamically adjust authentication thresholds based on varying authentication error rates due to changes in image quality or environment, leading to suboptimal security and accuracy.
Method used
An information processing apparatus and method that estimates authentication error distributions using biometric images and target images, determining thresholds based on these distributions and user-defined error rates to optimize authentication accuracy and security.
Benefits of technology
Enables dynamic adjustment of authentication thresholds to achieve desired error rates, improving security and accuracy by minimizing false rejection and acceptance rates regardless of image quality or environmental changes.
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Smart Images
Figure JP2024041837_04062026_PF_FP_ABST
Abstract
This information processing device includes: image acquisition means for acquiring at least one of a target image obtained by imaging an authentication target that is a target of biometric authentication when the biometric authentication is executed and a biometric image obtained by imaging a living body in the authentication environment of the biometric authentication for the authentication target; estimation means for estimating an authentication error distribution that is a distribution of authentication error rates in the biometric authentication, on the basis of at least one of the target image and the biometric image; and threshold determination means for determining a threshold of an authentication score in the biometric authentication on the basis of the authentication error distribution and an arbitrary authentication error rate. This information processing device can achieve a desired authentication error rate even with variations in image quality and photographing environment.
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