Hand-attachable Iris Recognition Wearable with Near-Infrared Imaging

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Solution Overview

Problem

Current wearable devices lack effective iris recognition capabilities outdoors due to reflection noise issues and inconvenient authentication processes, especially when used as connected devices with IoT systems, requiring a solution that enhances security and user convenience.

Innovation Solution

A hand-attachable wearable device with an indoor and outdoor combined or separated photographing unit using a band-pass filter in the 920 to 1500 nm wavelength band, coupled with infrared lighting and a wearing position verifying unit, to reduce reflection noise and facilitate intuitive iris image capture, while maintaining continuous user authentication.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional photographing units are used for iris recognition, then indoor recognition is achievable, but outdoor recognition fails due to reflection noise

Engineering Contradiction:

Improveiris recognition accuracyVSAvoidreflection noise

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent changes the wavelength parameter of the photographing unit from conventional visible light range to near-infrared range (920-1500 nm). This parameter change allows the system to penetrate reflection noise effectively, as near-infrared light is less susceptible to reflection from surfaces like glasses or screens, thereby enabling reliable iris recognition both indoors and outdoors

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent substitutes conventional visible light photographing mechanisms with near-infrared photographing mechanisms. By replacing the light source and sensor characteristics, the system achieves the ability to capture iris images without being affected by reflection noise, solving the outdoor recognition problem

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Adaptability or versatility

If wearable device is used as connected device with IoT systems, then functionality is enhanced, but security vulnerability increases

Engineering Contradiction:

ImproveIoT connectivityVSAvoidsecurity

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent segments the authentication system into multiple independent components: near-infrared iris photographing unit, iris feature extraction module, and authentication decision module. This segmentation allows the biometric authentication to operate independently and securely, providing a robust security layer that is not compromised by IoT connectivity vulnerabilities

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent introduces near-infrared iris recognition as an intermediary authentication mechanism between the user and the IoT system. This intermediary layer provides verified user identity before allowing access to connected devices, thereby enhancing security without limiting the adaptability of IoT connectivity

Inventive Principle:

Principle #24Intermediary (Mediator)

3Reliability

If continuous authentication is required for security, then security is strengthened, but user convenience deteriorates

Engineering Contradiction:

ImprovesecurityVSAvoidauthentication convenience

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The patent implements self-service authentication through near-infrared iris recognition that operates automatically without requiring user intervention. The system continuously captures iris images and performs authentication in the background, providing security strengthening while maintaining user convenience, as users simply need to look at the device without actively participating in the authentication process

Inventive Principle:

Principle #25Self-service

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

The solution enables reliable iris recognition both indoors and outdoors, reducing reflection noise and enhancing user convenience by allowing continuous authentication without additional steps, thereby strengthening security in IoT communications.

Implementation Method 1

using a band-pass filter in the 920 to 1500 nm wavelength band

Methodology Applied

Scientific EffectBand-pass filter: Filter (optical)

Implementation Method 2

coupled with infrared lighting

Methodology Applied

Scientific EffectInfrared lighting: Light

Data Source

PatentUS10061982B2Hand-attachable wearable device capable of iris recognition indoors and/or outdoors

Publication Date: 2018.08.28 IRITECH

AI summary

The present invention relates to a hand-attachable wearable device capable of iris identification outdoors and/or indoors, which includes an electronic component case and a band covering a wrist or a finger, and particularly, to a hand-attachable wearable device capable of iris identification outdoors and/or indoors, which includes an indoor and outdoor-combined photographing unit or an indoor and outdoor-separated photographing unit installed at one side of the case, which is used for photographing an iris image in which reflection noise is reduced indoors and outdoors, an infrared lighting installed at one side of the case and required for photographing the iris image clearly, and an iris recognition unit performing the iris recognition by comparing registered and stored iris image information and photographed iris image information.