Biometric Data Conversion for Cross-Device Authentication Accuracy
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Solution Overview
Problem
Biometric information acquired in contact and non-contact states may differ due to pressing force, leading to decreased user authentication accuracy when different acquisition devices are used for registration and authentication, and existing technologies do not effectively convert biometric information across various acquisition methods for consistent authentication.
Innovation Solution
A biometric data conversion device and method that converts biometric data from any acquisition method into a format suitable for biometric authentication, utilizing a server to process and convert non-contact and contact data into a unified format.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If biometric information is acquired in contact state, then the acquisition speed is improved, but the shape of biometric information changes due to pressing force, causing authentication accuracy to decrease
Solution Approach 1:
The patent transforms contact-state biometric data (which deforms under pressure) into non-contact-state biometric data format. This parameter transformation allows the system to maintain the speed advantage of contact acquisition while achieving the shape fidelity of non-contact acquisition, thereby resolving the contradiction between acquisition speed and authentication accuracy
Solution Approach 2:
The patent introduces a data transformation process as an intermediary between contact acquisition and authentication. This intermediary converts the deformed contact-state data into a format equivalent to non-contact data, allowing the system to benefit from both contact speed and non-contact accuracy
2Adaptability or versatility
If different acquisition devices are used for registration and authentication, then the versatility of the system is improved, but the authentication accuracy decreases due to different acquisition methods
Solution Approach 1:
The patent creates a universal data transformation capability that works across different acquisition devices and methods. By converting various acquisition formats (contact, non-contact, different devices) into a unified non-contact-equivalent format, the system achieves both device versatility and consistent authentication accuracy
Solution Approach 2:
The patent applies parameter transformation to standardize data from different acquisition sources. By changing the state parameter of biometric data to a common non-contact-equivalent format, the system eliminates accuracy loss while maintaining compatibility with multiple acquisition devices
Data Source
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AI summary
This biological data conversion device comprises: an acquisition unit that acquires at least one item of first biological data; and a control unit that converts the first biological data to second biological data, which is different from the first biological data, and outputs the second biological data.