MegaMatcher Accelerator

Solution for large-scale AFIS or multi-biometric systems

MegaMatcher Accelerator is a hardware/software solution that provides high speed, high volume biometric identification for national-scale projects.

The Extreme and Extended versions are designed to run on server hardware and perform fast biometric template matching on the server-side of a large-scale AFIS or multi-modal system. The Standard version and Development Edition are intended to be run on a common PC. MegaMatcher Accelerator software licenses are available for new and existing MegaMatcher Extended SDK customers.

Tests

MegaMatcher Accelerator 10.0 Extended was tested on the server hardware that is optionally provided with the product.

MegaMatcher Accelerator 10.0 Standard was tested on hardware with these specifications:

  • Intel Core i7-4771 processor, running at 3.50 GHz;
  • 16 GB of RAM (2 x 8 GB, 1600 MHz);
  • Gigabyte GA-Q87M-D2H (REV. 1.0) motherboard;
  • 1 TB SATA hard disk drive;
  • bootable CD-ROM compatible device, can be over USB.

The fingerprints, faces and irises template databases were used for testing the reliability of the MegaMatcher Accelerator 10.0 template matching algorithm:

  • Fingerprints database is the SONATEQ Fingerprint Database SQ FDB1-75TS1 that contains 75,000 fingerprints collected with Cross Match Verifier 300 LC scanner. The database represents 1,500 unique persons with 10 fingerprints per person captured in 5 sessions. Neurotechnology's proprietary format was used for fingerprint template storage. The tests were performed with these biometric template types:
    • 1 fingerprint record – using left hand index fingerprint;
    • 2 fingerprint records – using right and left hand index fingerprints belonging to the same person;
    • 4 fingerprint records – using left hand slap fingerprints (index, middle, ring and little fingers) belonging to the same person;
    • 8 fingerprint records – using right and left hand slap fingerprints (index, middle, ring and little fingers) belonging to the same person;
    • 10 fingerprint records – using all 10 fingerprints belonging to the same person.
  • Faces database was created from Neurotechnology's internal face image collection. The face database contains 1,500 unique persons. Each person's face was captured in 5 sessions.
  • Irises database was created by merging iris images from BATH, Casia3 and ND-IRIS-0405 Iris Image Dataset. The irises from those 3 datasets were combined to represent 1,500 unique persons with left and right irises captured in 5 sessions. The tests were performed with these biometric template types:
    • 1 iris record – using left eye image;
    • 2 iris records – using both eye images belonging to the same person.

Multi-modal databases are combination of the mentioned fingerprint, face and iris databases. The databases represent 1,500 unique persons with 10 fingerprints, 1 face and/or 2 iris images per persons, depending on the biometric modalities combination. Each person's biometric data was captured in 5 sessions. The tests were performed with the biometric template types, that combined 1, 2, 4, 8 or 10 fingerprints, 1 face and 1 or 2 irises, belonging to the same person, in all possible multi-modal combinations.

Three tests were performed with fingerprints database:

  • Test 1 maximized matching speed. MegaMatcher Accelerator 10.0 algorithm reliability in this test is shown as red curves on the ROC charts
  • Test 2 used the default engine settings. MegaMatcher Accelerator 10.0 algorithm reliability in this test is shown as green curves on the ROC charts
  • Test 3 maximized matching accuracy. MegaMatcher Accelerator 10.0 algorithm reliability in this test is shown as blue curves on the ROC charts

Reliability testing results for the MegaMatcher Accelerator 10.0 template matching engines are shown as a receiver operation characteristic (ROC) charts. The ROC calculation was performed by comparing all templates from corresponding databases each to the other.

1 fingerprint

Click to zoom
2 fingerprints

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1 face

Click to zoom
1 and 2 irises

Click to zoom
Fingerprints + irises

Click to zoom
Fingerprints + faces

Click to zoom
Faces + irises

Click to zoom
1 fingerprint
2 fingerprints
1 face
1 and 2 irises
Fingerprints + irises
Fingerprints + faces
Faces + irises

Note that the tests with these biometric template types resulted with 0 % FRR for all FAR values:

  • 4, 8 and 10 fingerprints (all three tests);
  • all bi-modal fingerprints and faces combinations, except 1 face with 1 fingerprint;
  • all bi-modal fingerprints and irises combinations, except 1 iris with 1 fingerprint;
  • all tri-modal fingerprints, face and irises combinations.

The MegaMatcher Accelerator 10.0 template matching algorithm performance was tested with smaller parts of the corresponding biometric data sets sent as matching tasks. The remaining larger sections of the data sets were saved to the MegaMatcher Accelerator database multiple times, filling it to full capacity. The table below shows the performance testing results:

MegaMatcher Accelerator 10.0 matching speed testing (million templates per second)
One template contains: MegaMatcher Accelerator 10.0
Extended
MegaMatcher Accelerator 10.0
Standard
Test 1 Test 2 Test 3 Test 1 Test 2 Test 3
1 fingerprint record 128.97 94.85 20.85 36.29 31.17 5.42
2 fingerprint records 57.40 54.01 8.87 18.20 16.08 2.23
4 fingerprint records 28.38 25.55 4.08 9.09 8.35 1.02
8 fingerprint records 15.39 12.75 2.24 4.56 4.54 0.61
10 fingerprint records 13.39 12.15 2.04 3.69 3.65 0.51
1 face record 111.58 37.02
1 iris record 242.96 74.72
2 iris records 120.28 37.35
Neurotechnology Distributors Map Ex-Cle S.A - representative in Argentina FingerSec do Brasil - distributor in Brazil (web site in Portuguese) Distributors in Chile Neurotechnology's Chinese Office (web site in Chinese) Security Systems Ltda - distributor in Colombia (web site in Spanish) Data6terms - distributor in Congo D.R. General Security El Salvador - distributor in El Salvador (web site in Spanish) Infokey Software Solutions - distributor in Greece (web site in Greek and English) Fulcrum Biometrics India Pvt. Ltd. - distributor in India Accent e Technology - distributor in India Hagai Jaya Teknik - distributor in Indonesia Biometric srl - distributor in Italy (web site in Italian) Software Sources Ltd - distributor in Israel Tegara Corporation - distributor in Japan (web site in Japanese) Bruce and Brian Co., LTD. - distributor in Korea (web site in Korean) Digital Data Systems - distributor in Pakistan Ex-Cle S.A - distributor in Paraguay Digital Works - distributor in Peru Fingerprint i.t. - distributor in South Africa Intuate Biometrics - distributor in Spain (web site in Spanish) Sri Lanka Division - Neurotechnology Lab Delaney Biometrics - distributor in the UK Fulcrum Biometrics - representative in the USA Unifyia, Inc - distributor in the USA Distributors in Venezuela
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