Multibiometric Multispectral Imager for Single-Sensor Fusion

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Solution Overview

Problem

Current multibiometric systems are expensive, difficult to deploy, and require multiple interactions from users due to the need for multiple sensors, compromising their cost-effectiveness and user-friendliness while providing high security.

Innovation Solution

A whole-hand multispectral imager that collects biometric data from multiple sources, including fingerprints, palmprints, chromatic texture, and handshape, using a single sensor with multiple optical configurations to gather multispectral data, allowing for simultaneous data collection and processing of multiple biometric modalities.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple discrete sensors are used for multibiometric authentication, then security and accuracy are improved, but system cost and complexity increase

Engineering Contradiction:

Improvebiometric authentication accuracyVSAvoidnumber of sensors

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines multiple biometric sensing functions (fingerprint, palm print, chromatic texture, hand shape) into a single integrated sensor device. This merging approach maintains the security and accuracy benefits of multibiometric authentication while reducing system complexity and cost by eliminating the need for multiple separate sensors

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The sensor device is designed to perform multiple biometric measurement functions simultaneously using a single device. The universal sensor can capture fingerprints, palm prints, chromatic textures, and hand shapes, making the system more cost-effective and simpler to deploy while maintaining high security standards

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If multiple discrete sensors are deployed for multibiometric systems, then authentication security is enhanced, but ease of deployment deteriorates

Engineering Contradiction:

ImprovesecurityVSAvoiddeployment difficulty

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

By merging multiple biometric sensing capabilities into one device, the system becomes significantly easier to deploy. The single sensor device eliminates the complexity of coordinating multiple separate sensors, reducing installation time and technical requirements while maintaining enhanced security through multibiometric authentication

Inventive Principle:

Principle #5Merging (Combining)

3Measurement precision

If multiple discrete sensors are used, then biometric accuracy is improved, but user interaction complexity increases

Engineering Contradiction:

Improvebiometric measurement accuracyVSAvoiduser interaction simplicity

Core Design Contradiction:

Measurement precisionVSEase of operation

Solution Approach 1:

The single sensor device captures multiple biometric modalities (fingerprint, palm print, chromatic texture, hand shape) simultaneously in one interaction. This eliminates the need for users to perform multiple discrete actions required by separate sensors, maintaining high measurement precision while greatly simplifying user interaction to a single placement action

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentEP2041696B1Multibiometric multispectral imager

Publication Date: 2020.11.18 HID GLOBAL CORP

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AI summary

A skin site of an individual is illuminated and light scattered from the skin site under multispectral conditions is received. The light includes light scattered from tissue beneath a surface of the skin site. Multiple biometric modalities are derived from the received light. The biometric modalities are fused into a combined biometric modality that is analyzed to perform a biometric function.