Dual-Standard Eyeball Imaging for Reliable User Identification
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Solution Overview
Problem
Existing imaging systems face challenges in accurately identifying users based on eyeball images due to variations in iris size and user cooperation during authentication processes.
Innovation Solution
The imaging apparatus employs dual authentication methods using images that satisfy different standards, registering and identifying users based on first and second authentication eyeball images, with the first standard ensuring high-quality images and the second accommodating varying input quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a single authentication standard is used for eyeball image identification, then the authentication process is simple, but identification accuracy decreases when users are less cooperative or iris size varies
Solution Approach 1:
The authentication process is segmented into two distinct pathways: first authentication processing for cooperative users with high-quality images, and second authentication processing for less cooperative users with varying image quality. Each pathway has its own determination standards and identification processing, allowing the system to handle different user scenarios independently without compromising overall accuracy
Solution Approach 2:
The system dynamically selects which authentication processing to execute based on real-time evaluation of the captured eyeball image. The control unit determines whether to perform first or second authentication processing by evaluating image quality metrics, enabling the system to adapt its identification approach according to the actual authentication conditions and user cooperation level
2Reliability
If multiple authentication standards are implemented, then identification accuracy improves for different user scenarios, but the device complexity increases
Solution Approach 1:
The imaging apparatus integrates multiple authentication functions within a single system structure. The control unit can perform both first authentication processing (with first determination standards) and second authentication processing (with second determination standards), allowing one device to serve multiple authentication scenarios without requiring separate systems for different user types
Solution Approach 2:
Different determination standards are applied locally based on the specific authentication scenario. The first determination unit applies stricter standards for cooperative users, while the second determination unit applies more flexible standards for less cooperative users. This localized application of quality standards ensures high reliability for each scenario without uniformly increasing system complexity
3Measurement precision
If strict authentication standards are applied, then identification accuracy is high for cooperative users, but authentication fails for less cooperative users with varying iris sizes
Solution Approach 1:
The system changes the determination parameters based on the authentication scenario. For first authentication processing, stricter parameter thresholds are applied to ensure high accuracy with cooperative users. For second authentication processing, more flexible parameter thresholds accommodate variations in iris size and user cooperation. The control unit switches between these parameter sets dynamically, maintaining both precision and adaptability
Data Source
AI summary
An imaging apparatus includes an imaging unit configured to capture an eyeball image of a user of the imaging apparatus, a first determination unit configured to determine whether the eyeball image satisfies a first condition, a second determination unit configured to determine whether the eyeball image satisfies a second condition, a first identification unit configured to execute first identification processing for identifying a user of the imaging apparatus based on a first eyeball image determined to satisfy the first condition, a second identification unit configured to execute second identification processing for identifying the user of the imaging apparatus based on a second eyeball image determined to satisfy the second condition, and a control unit configured to perform control to record information regarding the user identified by the first identification processing and the second identification processing and the eyeball image captured by the imaging apparatus in a memory in association with each other.