Single Image Capture for Multi-Factor Biometric Authentication
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Solution Overview
Problem
Existing biometric authentication methods require multiple image acquisition devices, leading to complex and burdensome setups for users when performing multi-factor authentication.
Innovation Solution
A system that uses a single image-taking device controlled by an authentication data generation device to capture images of multiple authentication parts with different settings, simplifying the configuration and reducing user burden by outputting these images as authentication data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple image acquisition devices are used for multi-factor biometric authentication, then authentication accuracy is improved, but device complexity increases
Solution Approach 1:
The patent applies universality by enabling a single image acquisition device to perform multiple authentication functions (face recognition, iris recognition, fingerprint recognition) through software control and image processing algorithms, eliminating the need for separate dedicated devices for each biometric factor while maintaining multi-factor authentication capability
2Reliability
If multiple image acquisition devices are used for multi-factor biometric authentication, then authentication accuracy is improved, but user burden increases
Solution Approach 1:
The patent merges multiple authentication processes into a single image capture operation. The image acquisition device captures images containing multiple biometric features (face, iris, fingerprint) simultaneously in one shot, and the processing unit extracts and analyzes all required authentication data from this single captured image, significantly reducing user burden while maintaining multi-factor authentication accuracy
3Device complexity
If a single image-taking device is used to capture multiple authentication parts, then device complexity is reduced, but image acquisition capability must be enhanced
Solution Approach 1:
The patent applies parameter changes by adjusting image acquisition parameters (focus, exposure, lighting) and using image processing techniques to enhance the captured image quality. The processing unit analyzes the single captured image to extract multiple biometric features by applying different processing algorithms and parameter transformations, enabling the simplified device to achieve enhanced image acquisition capability for multiple authentication purposes
Data Source
AI summary
A preliminary image is captured that includes parts of an authentication target person. Main authentication targets are determined. The main authentication targets are those parts that each have an acceptable image-capturing state. A single image-capturing device can then be controlled to successively capture images of the main authentication parts of the authentication target person that have been determined with different settings. These images of the main authentication parts that have been captured can then be output. For instance, authentication of the target person may be performed using authentication data for each main authentication part, where such authentication is successfully when authentication for all the main authentication parts is successful.