Authentication Terminal Biometric Processing Throughput
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Solution Overview
Problem
Existing authentication methods, such as those described in Patent Literature 1 and 2, face inefficiencies due to high processing loads and time consumption when extracting biometric information from captured images, resulting in insufficient throughput.
Innovation Solution
An authentication system that captures a body image and a code image from a distance, using a code recording medium with embedded biometric information, allowing for simultaneous processing of biometric authentication while the user approaches, thereby improving authentication speed and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If biometric information is extracted from captured images using conventional methods, then authentication accuracy is maintained, but processing time increases and throughput decreases
Solution Approach 1:
The system captures the user's body image in advance at a first distance before the user reaches the imaging position, and starts processing to generate biometric information from the body image. This preliminary capture and processing reduces the time required for authentication when the user actually arrives at the authentication point.
Solution Approach 2:
The system uses a code recording medium carried by the user as an intermediary to store biometric information for registration. The code image is captured at a second distance closer to the imaging position, allowing the system to verify authentication by comparing live biometric data with the pre-stored code information, thereby speeding up the authentication process.
2Productivity
If biometric information extraction is performed in advance, then authentication speed improves, but system complexity increases due to multiple imaging distances and code recording media
Solution Approach 1:
The code recording medium serves multiple functions: it stores biometric information for registration, acts as a carrier that the user possesses, and provides a reference for authentication verification. This multi-functionality reduces the need for separate systems for each function.
Solution Approach 2:
The system operates in two dimensional aspects: spatial dimension with two different distances (first distance for body image, second distance for code image) and temporal dimension with sequential processing (capture body image first, then capture code image). This dimensional approach allows parallel processing streams that improve throughput without excessive complexity.
Data Source
AI summary
The image acquisition unit acquires a body image generated by capturing an image of a body of a target person when a target person is in a position away from an imaging unit by a first distance and acquires a code image generated by capturing an image of a code recording medium carried by the target person when the target person is in a position away from the imaging unit by a second distance shorter than the first distance. The authentication information generation unit starts processing for generating biometric information for authentication of the target person from the body image in accordance with the acquisition of the body image of the target person. The embedded information acquisition unit acquires embedded information from the code image. The authentication unit executes biometric authentication by collating biometric information for authentication with biometric information for registration included in the embedded information.