Integrated Face And Iris Imaging for Compact Authentication Terminals
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Solution Overview
Problem
Complex biometric authentication systems require multiple biometric information capture, leading to increased time and terminal size due to separate imaging units for each process.
Innovation Solution
An imaging apparatus with integrated first and second imaging units, including a drive unit and control unit, adjusts the imaging range based on detected face position to capture both face and iris images efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If separate imaging units are used for each biometric process, then authentication accuracy is improved, but terminal size and time required increase
Solution Approach 1:
The patent combines multiple imaging units (first imaging unit for face authentication and second imaging unit for iris authentication) into a single integrated terminal. The drive unit coordinates both imaging units to capture different biometric information sequentially, achieving multi-modal authentication without requiring separate physical terminals for each biometric process.
Solution Approach 2:
The patent employs a drive unit that dynamically adjusts the imaging range of each imaging unit based on the authentication process requirements. The drive control unit controls the drive unit to selectively adjust the imaging range of the first and second imaging units, enabling flexible coordination of multiple biometric captures within a single terminal.
2Reliability
If multiple biometric information are obtained individually, then authentication reliability is improved, but time required for authentication increases
Solution Approach 1:
The patent implements continuous authentication processing where the drive unit coordinates the first and second imaging units to capture face and iris images in a seamless sequence. The drive control unit manages the timing and coordination of both imaging units, enabling biometric information to be obtained continuously without significant interruptions or delays between different authentication processes.
3Measurement precision
If imaging range is adjusted for each biometric process, then image capture quality is improved, but device complexity increases
Solution Approach 1:
The patent designs a universal drive control mechanism where the drive control unit manages the imaging range adjustment of both the first and second imaging units through a single coordinated system. This multi-functional approach allows the same drive control infrastructure to handle different biometric capture requirements (face and iris authentication) without requiring separate independent control mechanisms for each imaging unit.
Data Source
AI summary
An imaging apparatus for authentication includes: a first imaging unit that obtains a first image used in a first authentication process by imaging a target person; a second imaging unit that obtains a second image used in a second image process by imaging the target person in an imaging range narrower than that of the first imaging unit; a drive unit that integrally drives the first imaging unit and the second imaging unit; and a drive control unit that controls the drive unit on the basis of the first image.