Skip to main content    

An official website of the United States government

Here’s how you know

**Official websites use .gov**              A **.gov** website belongs to an official government organization in the United States.            

**Secure .gov websites use HTTPS**              A **lock** (  LockA locked padlock) or **https://** means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.            

https://www.nist.gov/itl/iad/image-group/irex-ix

            -  Topics  -  All Topics 
-  Advanced communications 
-  Artificial intelligence 
-  Bioscience 
-  Buildings and construction 
-  Chemistry 
-  Climate 
-  Cybersecurity 
-  Electronics 
-  Energy 
-  Environment 
-  Fire 
-  Forensic science 
-  Health 
-  Information technology 
-  Infrastructure 
-  Manufacturing 
-  Materials 
-  Mathematics and statistics 
-  Metrology 
-  Nanotechnology 
-  Neutron research 
-  Performance excellence 
-  Physics 
-  Public safety 
-  Resilience 
-  Standards 
-  Transportation 
 
            -  Publications 
            -  Labs & Major Programs  -  Laboratories    -  Communications Technology Laboratory 
  -  Engineering Laboratory 
  -  Information Technology Laboratory 
  -  Material Measurement Laboratory 
  -  Physical Measurement Laboratory 
-  User Facilities    -  NIST Center for Neutron Research 
  -  CNST NanoFab 
-  Research Test Beds 
-  Research Projects 
-  Tools & Instruments 
-  Major Programs    -  Baldrige Performance Excellence Program 
  -  CHIPS for America Initiative 
  -  Manufacturing Extension Partnership (MEP) 
  -  Office of Advanced Manufacturing 
  -  Special Programs Office 
  -  Technology Partnerships Office 
 
            -  Services & Resources  -  Standards and Measurements    -  Calibration Services 
  -  Laboratory Accreditation (NVLAP) 
  -  Quality System 
  -  Standard Reference Materials (SRMs) 
  -  Standards.gov 
  -  Time Services 
  -  Office of Weights and Measures 
-  Software 
-  Data    -  Chemistry WebBook 
  -  National Vulnerability Database 
  -  Physical Reference Data 
  -  Standard Reference Data (SRD) 
-  Storefront 
-  License & Patents 
-  Computer Security Resource Center (CSRC) 
-  NIST Research Library 
 
            -  News & Events  -  News 
-  Events 
-  Blogs 
-  Feature Stories 
-  Awards 
-  Video Gallery 
-  Image Gallery 
-  Media Contacts 
 
            -  About NIST  -  About Us    -  Leadership 
  -  Organization Structure 
  -  Budget & Planning 
-  Contact Us 
-  Visit 
-  Careers    -  Student programs 
-  Work with NIST 
-  History    -  NIST Digital Archives 
  -  NIST Museum 
  -  NIST and the Nobel 
-  Educational Resources 
 

Information Technology LaboratoryInformation Access Division

## Image Group

-  Programs/Projects  Expand or Collapse    -  Fingerprint  Expand or Collapse      -  ANSI/NIST-ITL Standard 
    -  Fingerprint Compression  Expand or Collapse        -  WSQ Certification Procedure 
      -  Biometric Compression Information 
      -  JPEG 2000 Conformance Testing 
    -  Fingerprint Recognition  Expand or Collapse        -  Minutiae Interoperability Exchange (MINEX) 
      -  Proprietary Fingerprint Template Evaluations (PFT) 
      -  Fingerprint Vendor Technology Evaluation (FpVTE) 
      -  Slap Fingerprint Segmentation Evaluation (Slapseg) 
      -  Biometric Quality 
      -  Evaluation of Latent Fingerprint Technologies (ELFT) 
    -  Next Generation Fingerprint Technologies  Expand or Collapse        -  Contactless Fingerprint Capture 
      -  Fast Tenprint Capture 
      -  Statistical Friction Ridge Analysis (SFRA) 
  -  Iris  Expand or Collapse      -  IRIS Experts Group II 
    -  Iris Challenge Evaluation (ICE) 
    -  Iris Exchange (IREX) 
    -  Multiple Biometric Evaluation (MBE) 
    -  Multiple Biometrics Grand Challenge (MBGC) 
  -  Face  Expand or Collapse      -  Chexia Face Recognition 
    -  Face Challenges 
    -  Face Recognition Grand Challenge (FRGC) 
    -  Face Recognition Prize Challenge (FRPC) 2017 
    -  Face Recognition Technology (FERET) 
    -  Face Recognition Vendor Test (FRVT) Ongoing 
    -  Face Recognition Vendor Test (FRVT) 
    -  Face and Ocular Challenge Series (FOCS) 
    -  Face in Video Evaluation (FIVE) 
    -  Multiple Biometric Evaluation (MBE) 
    -  Multiple Biometric Grand Challenge (MBGC) 
    -  Point and Shoot Face Recognition Challenge (PaSC) 
    -  Text Recognition Algorithm Independent Evaluation (TRAIT) 
  -  Tattoo  Expand or Collapse      -  Tattoo Recognition Technology - Evaluation (Tatt-E) 
    -  Tattoo Recognition Technology – Challenge (Tatt-C) 
  -  Biometrics 
  -  Legacy Projects  Expand or Collapse      -  Neural Networks 
    -  Optical Character Recognition (OCR) 
    -  PATRIOT Act Research 
  -  Biometric Web Services (BWS) 
  -  Digital Video Exchange Standards 
-  Resources  Expand or Collapse    -  Biometric Special Databases and Software 
  -  Biometrics Evaluations 
  -  INCITS Standardized Biometric Data 
  -  Image Group Publications (by year) 
  -  Image Group Workshops/Conferences/Talks 
-  Staff Listing 
-  Publications 
-  Products and Services  Expand or Collapse    -  Image Group Open Source Server (NIGOS) 
  -  Encrypting Software/Data for Transmission to NIST 
  -  Software  Expand or Collapse      -  Biometric Evaluation Framework 
    -  Fingerprint Minutiae Viewer (FpMV) 
    -  Multimodal Biometric Application Resource Kit (MBARK) 
    -  NIST Biometric Image Software (NBIS) 
    -  BiomAPP - NIST Biometric Data Interchange Format Software Tools 
    -  BiomDI - Software tools supporting Standard Biometrics Data Interchange Formats 
    -  Dental Encoding Translator Applications Suite (DEnTAS) 
    -  Development of NFIQ 2.0 
    -  NIST Fingerprint Registration and Comparison Tool (NFRaCT) 
    -  Public Domain OCR 
    -  Video-based Automatic System for Iris Recognition (VASIR) 

## Connect with us

Facebook

# IREX IX

## Share

Facebook

Linkedin

Twitter

Email

**2019-09-17:**Tabulated results from the first public report are being re-released with decision thresholds included.

**2019-06-05:**A follow-up multispectral evaluation of iris recognition is now available as NIST Interagency Report 8252.

**2018-04-30:**DET accuracy results from the first public report are being publicly released in tabular form. The tar file is 55 Mb.

**2018-04-18:** NIST is pleased to announce the release of Part 1 of IREX IX. The document, NIST Interagency Report 8207, is a performance evaluation of iris recognition algorithms.

**2017-07-11:** A third submission phase has been added to IREX IX. The deadline for submission is September 1st, 2017

**2017-01-06:** The Phase II submission deadline has been extended to January 21st, 2017.

**2016-10-03:** The final validation package is available for download. The package includes a set of purely synthetic iris images. These images are not at all representative of the actual test data NIST will use for evaluation.

**2016-08-25:**The source code in the validation package has been updated. For Class B submissions, identify_template() should only be called if an identification template was successfully generated.

**2016-08-22:**A new validation package is available. It requires downloading CASIA's synthetic iris dataset (http://biometrics.idealtest.org/downloadDB.do?id=4&subset=6).

**2016-08-12:**An updated version of the IREX IX Concept, Evaluation Plan, and API Specification has been released. It extends the submission deadline for Phase I by one month. The new deadline is October 7th, 2016.

**2016-07-27:**An updated version of the IREX IX Concept, Evaluation Plan, and API Specification has been released. It includes an updated Participation Agreement.

**2016-07-19:**A new version of the validation package is available. It now includes an example of pupil and iris boundary points.

**2016-06-13:** An updated version of the IREX IX Concept, Evaluation Plan, and API Specification has been released. It clarifies that submitted libraries must link according to the C++11 linkage specification, not the C specification**.**

**2016-06-13:**A validation package is now available. The validation process ensures the correct operation of participants' software before and after delivery to NIST. The package also include header files for both Class A and Class B libraries. For further instructions, see the readme.txt.

**2016-05-23:**NIST announces the availability of the final IREX IX Concept, Evaluation Plan, and API Specification. Comments should be sent to irex [at] nist.gov (subject: , body: )  (irex[at]nist[dot]gov).

**2016-04-19:** The IREX IX Concept, Evaluation Plan, and API Specification, Version 0.1  is now available. The document is open for public comment until May 18, 2016. Comments should be sent to irex [at] nist.gov (subject: , body: )  (irex[at]nist[dot]gov).

**2016-04-17:**Plans for the IREX IX activity will be presented at the Iris Experts Group's (IEG-II) meeting on 2016-06-15 at NIST in Gaithersburg, MD.

**2016-04-15:**NIST is pleased to announce the latest in its series of quantitative activities supporting interoperable high performance iris recognition, IREX IX.  
                  - Verification: One-to-one matching
                  - Identification: One-to-many matching
                  - Effects of illumination wavelength: visible through the near infrared, both within and between wavelengths
                  - Effects of off-angle images: such as might be expected from captures on handheld mobile devices
                  - Forensic applications: images from cameras not designed for iris recognition

As before, the primary evaluations will be carried out on sequestered data from US government sources – this assures a level playing field for all. Secondary evaluations on publicly available datasets will also be carried out – this aids developers by enabling reproduction of evaluations.

**Background:** NIST initiated the Iris Exchange (IREX) program in 2008 in order to give quantitative support to the iris recognition marketplace, including support of the ISO/IEC 19794-6 and 29794-6 standards.  The program has quantified accuracy of compressed ISO/IEC 19794-6 images (IREX I), image quality assessment algorithms (IREX II), and 1:N algorithms (IREX III and IV).  It has guided compression (IREX I and IREX IV), and capture (IREX V).  It has projects for iris equipment abstraction (IREX VII) and optical certification (IREX VIII).  Other projects may be conducted in the future; please direct suggestions and inquires to irex [at] nist.gov (subject: , body: )  (irex[at]nist[dot]gov).

----

### IRIS Links

IREX OverviewIREX Datasets IREX VIIIREX VIIREX IVIREX IIIICE

Information technologyBiometrics

## Contacts

                -      IREX Liasion    irex@nist.gov   

### HEADQUARTERS

301-975-2000

Webmaster | Contact Us | Our Other Offices

TwitterFacebookLinkedInInstagramYouTubeGiphyRSS FeedMailing List

Feedback

            -  Site Privacy 
            -  Accessibility 
            -  Privacy Program 
            -  Copyrights 
            -  Vulnerability Disclosure 
            -  No Fear Act Policy 
            -  FOIA 
            -  Environmental Policy 
            -  Scientific Integrity 
            -  Information Quality Standards 
            -  Commerce.gov 
            -  Science.gov 
            -  USA.gov 
            -  Vote.gov