Iris and Periocular Biometric Recognition for Touchless Access
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Solution Overview
Problem
Existing biometric recognition systems face challenges in inclusivity and usability due to requirements for physical contact and cultural or religious constraints, particularly with the use of face masks, which limit the effectiveness of fingerprint and face recognition methods.
Innovation Solution
A dual biometric modality system that combines iris and periocular region recognition, using near-infrared and visible image frames to capture and analyze images, enabling touchless access control with enhanced accuracy and anti-spoofing mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If fingerprint recognition methods are used, then biometric recognition can be performed, but physical contact is required which is difficult for some individuals and during periods where users do not want to touch contaminated surfaces
Solution Approach 1:
The patent replaces mechanical contact-based fingerprint recognition with optical-based iris and periocular region recognition. The system uses near-infrared and visible image capture devices to obtain biometric data without requiring physical contact, thereby achieving touchless operation while maintaining broad usability across different individuals including those with hygiene concerns or contamination risks
2Adaptability or versatility
If face recognition methods are used, then biometric recognition can be performed, but it is impossible for some individuals due to cultural or religious requirements which necessitate the use of face coverings or face masks
Solution Approach 1:
The patent extracts the biometric recognition function from the face area that is covered by masks to the periocular region and iris. By focusing on the eye area which remains exposed even when faces are covered, the system achieves inclusivity for individuals with cultural or religious requirements while maintaining operational capability through alternative biometric modalities
3Measurement precision
If single biometric modality is used, then system complexity is low, but recognition accuracy and anti-spoofing capability are limited
Solution Approach 1:
The patent merges iris recognition and periocular region recognition into a unified dual biometric modality system. The system combines near-infrared and visible image capture, integrates multiple processing modules for iris extraction, periocular feature extraction, and anti-spoofing analysis, thereby achieving enhanced recognition accuracy and anti-spoofing capability through the synergistic combination of multiple biometric modalities
Data Source
AI summary
Disclosed herein are methods, apparatus, and systems for iris and periocular biometric recognition. A method for biometric recognition includes capturing one or more image frames of at least a facial portion of a user, determining an iris image portion and a periocular region image portion from the one or more image frames, performing iris encoding on a live iris image portion to generate an iris template, performing periocular region encoding on a live periocular region image portion to generate a periocular region template, performing iris matching on the iris template to generate an iris result, performing periocular region matching on the periocular region template to generate a periocular region result, and using one or more of the iris result and the periocular region result to enable the user to access an object.