Supporting Market Adoption of Contactless Fingerprint Capture Technologies

John Libert

ITL/Information Access Division

Evolution of Fingerprint Technologies

• Inked Tenprint

• Livescan Tenprint– Appendix-F (Forensic) IQS*

• ID-Flats– PIV† IQS

• Contactless Fingerprint– Rolled? Slap? IQS?

* Image Quality Specification† Personal Identity Verification 2

?Credit: ©Axstokes/Shutterstock.com

History of Technology Validation & Adoption

Ink to Livescan

Livescan to ID-Flats

Livescan/ID-Flats to Contactless

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1. Ink to Livescan

• Ink impressed from tops of ridges and absorbed by paper fibers

versus • Light frustrated from tops of ridges

touching the glass platen (FTIR *)

• Road to Adoption– Studies, demonstrations, pilots– Appendix-F IQS,

Certified Products List

4*Frustrated Total Internal Reflection

2. Livescan to ID-Flats

• FTIR versus FTIR• Rolled versus Plain

• Road to Adoption– Studies, demonstrations, pilots– Personal Identify Verification (PIV) IQS,

Certified Products List

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3. Livescan/ID-Flats to Contactless• FTIR versus Touchless

+ Z-axis freedom+ Direct sensing

(sides of ridges in-light / in-shadow)+ Unwrapping?+ Under motion?

• Unlike FTIR, sensor solutions differ between contactless fingerprint technology developers

• Touchless fingerprints must be matchable to the hundreds of millions of touch-based fingerprints on file

• Road to Adoption?– Studies, demonstrations, pilots– New Testing Methods and Metrics for

New Certified Products List• Not a simple extension of Appendix-F or PIV IQS

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NIST CRADA Program(Contactless Fingerprint Capture Device Measurement Research)

• CRADA – Cooperative Research and Development Agreement– http://www.nist.gov/itl/iad/ig/crada_contactless.cfm

• NIST working with industry to develop common criteria, testing methods and metrics to ensure new contactless devices produce fingerprint images that are reliable and appropriate for intended applications

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Why NIST?• Advances measurement science, standards and

technology to enhance economic security and improve our quality of life

• Measures and evaluates information technology– Accuracy - How well it performs– Interoperability - How well it works with other technologies

• Promotes standards and best practices– Key to making things interoperable

• Advances image-based biometric technologies through evaluation and standardization– Fingerprint, Face, and Iris– 50+ Years

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NIST and Industry• Need to determine a set of common testing

requirements and methods that work across different contactless technology solutions

• New testing methods and metrics cannot be successfully developed independently– Not by NIST alone– Not by any Technology Developer alone

• NIST set up CRADA program so Industry can enter into a trustworthy partnership where:+ New devices (prototypes or products) shared with NIST+ Technical details about each device shared with NIST

• NIST is very pleased that MorphoTrak & 3M chose to be early collaborators with NIST under this program!

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Research Strategy

Guiding Principle• Test each contactless capture device under

conditions for which designed– At distance, under motion, with finger(-like)

targets, ...

• Turn off as little functionality as possible (ideally, none)

• Simply taking pictures of flat stationary optical targets is not sufficient

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Evaluation Categories

• Image Accuracy*

• Repeatability

• Reliability

– Matchability

* Primary focus of Appendix-F and PIV IQS

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NIST’s Goal

• Help industry bring contactless fingerprint devices to market quickly and responsibly

• Capabilities of the device properly matched and validated to the requirements of the intended application

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Strategy to Support Industry

Technology• “Slot” New Devices into Existing Application Profiles• Drive Interoperability of New Technologies• Identify New Applications w/ New Requirements

Standards• Adapt & Extend Certification Testing Methods• Develop New Fingerprint Acquisition

Profiles (FAPs)• Update ANSI/NIST-ITL Biometrics

Interchange Standard

Supporting Market Adoption of Contactless Fingerprint Capture Technologies

http://www.nist.gov/itl/iad/ig/crada_contactless.cfm fastcap@nist.gov