Noncontact Fingerprint and Iris Authentication System
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing authentication systems require direct contact with biological information, which raises hygiene concerns and increases the risk of virus transmission, especially in immigration control scenarios where multiple users may interact with the same apparatus.
Innovation Solution
An information processing system that acquires noncontact fingerprint and iris information using optical scanners and cameras, allowing for authentication without direct contact, and associates this information with pre-recorded biological data for identity verification and watchlist collation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If contact-type fingerprint reading is used, then authentication accuracy is maintained, but hygiene deteriorates and virus transmission risk increases
Solution Approach 1:
The patent uses optical scanning to create a digital copy (image) of the fingerprint ridge patterns without physical contact. This optical copy is then processed to extract minutiae points and generate template data for authentication, eliminating the need for direct contact while maintaining identification accuracy.
Solution Approach 2:
The patent replaces the mechanical contact-based fingerprint reading mechanism with an optical scanning system. The optical scanner captures fingerprint images through light reflection, substituting the mechanical pressure and contact required by traditional readers with non-contact optical detection.
2Object-affected harmful factors
If noncontact information acquisition is used, then hygiene improves and virus transmission risk reduces, but information quantity decreases
Solution Approach 1:
The patent extracts essential authentication features (minutiae points such as ridges, cores, deltas) from the optical fingerprint image. By focusing on these critical features rather than capturing complete fingerprint data, the system achieves sufficient authentication information through noncontact means.
Solution Approach 2:
The patent transforms the continuous optical image data into discrete parameter representations (minutiae point coordinates, ridge counting values, template codes). This parameter transformation condenses the rich optical information into a compact form that maintains authentication capability while reducing data volume.
3Reliability
If multiple biological information types are collected, then authentication reliability improves, but device complexity increases
Solution Approach 1:
The patent employs a unified optical scanning platform that can capture multiple types of biological information (fingerprint images, iris images, facial recognition images) using the same basic hardware infrastructure. This multi-functional approach enables comprehensive authentication without proportionally increasing device complexity.
Solution Approach 2:
The patent combines multiple authentication modalities (contactless fingerprint, iris recognition, facial recognition) into a single integrated authentication system. By merging these functions into one apparatus with coordinated operation, the system achieves enhanced reliability while avoiding the complexity of separate independent systems.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach reduces the risk of virus transmission by eliminating the need for direct contact with the apparatus and enables accurate identity authentication and watchlist collation using a smaller amount of noncontact information, while maintaining high accuracy with associated fingerprint impression information.
Implementation Method 1
an apparatus to take fingerprints used for the technology of Patent Document 1 is designed to read fingerprints of fingers of authentication subjects put on a predetermined platform using an optical technology
Implementation Method 2
acquire noncontact information indicating at least one of noncontact fingerprint information and iris information
Data Source
AI summary
An information processing system is configured to acquire noncontact information indicating at least one of noncontact fingerprint information and iris information of an authentication subject. Subsequently, the information processing system is configured to acquire biological information used for a collation of the authentication subject, which is recorded in advance and associated with the noncontact information.