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Biometric Scores Set

Biometric Scores Set - Release 1 (BSSR1) is a set of raw output similarity scores from two c. 2002 face recognition systems and one c. 2004 fingerprint system, operating on frontal faces, and left and right index live-scan fingerprints, respectively. The release includes true multimodal score data, i.e. similarity scores from comparisons of faces and fingerprints of the same people.

The data is intended to allow interested parties to investigate a range of outstanding statistical problems related to biometrics. Particularly the data are suited to the study of score-level fusion-based multimodal, multi-algorithmic, multi-sample and repeated-sample biometrics. In addition, the data is likely to be valuable for other purposes including the development of models of large population identification performance, testing of confidence interval estimators and assessment of the existence of the biometric zoo.

The release contains three partitions described:

Set 1 is comprised of face and fingerprint scores from the same set of 517 individuals. For each individual, the set contains one score from the comparison of two right index fingerprints, one score from the comparison of two left index fingerprints, and two scores (from two separate matchers) from the comparison of two frontal faces. The fingerprint images and the face images from which these scores were computed are from the same person (i.e. the chimera assumption is not in use) at the same time (and the dates are provided). The non-matching scores from the full cross-comparison are also included.

 

Number of subjects 517
  Number of fingerprint systems 1
  Number of face systems 2
  Number of face images from which scores were obtained 2 per subject
  Number of fingerprint images from which scores were obtained 4 (2 left, 2 right) per subject
  Number of scores 2 * 517 * 517
  Number of similarity files 2068
  Suggested use in fusion studies Face and finger fusion

 


Set 2 is comprised of fingerprint scores from one system run on images of 6000 individuals. For each individual, the set contains one score from the comparison of two left index fingerprints, and another from two right index fingerprints. The non-matching scores from the left vs. left and right vs. right cross-comparisons are also included.

 

Number of subjects 6000
  Number of fingerprint systems 1
  Number of face systems 0
  Number of face images from which scores were obtained 0
  Number of fingerprint images from which scores were obtained 4 (2 left, 2 right) per subject
  Number of scores 2 * 6000 * 6000
  Number of similarity files 12000
  Suggested use in fusion Two-finger fusion

 

Set 3 contains scores from two face systems run on images from 3000 individuals. For each individual, the set contains one score from the comparison of face A with a later face, B, and a score from face A and another later face, C. This data is provided for each of two mid-2002 face recognition algorithms

 

Number of subjects 3000
  Number of fingerprint systems 0
  Number of face systems 2
  Number of face images from which scores came 2 per subject
  Number of fingerprint images from which scores came 0
  Number of scores 2 * 3000 * 6000
  Number of similarity files 12000
  Suggested use in fusion studies Two-sample fusion and/or two-algorithm fusion

 

The data is available online. Note that the file size exceeds 100MB and should only be downloaded by users who have an understanding of what it contains, and an ability to handle the bzip2 compressed tar archive format. The archive is here and its md5 checksum is here. The compressor, bzip2, is available on virtually all unix distributions, and also under cygwin in Windows. Source code is available here. Note also that there are no images in this release.

For more information or questions please contact: Elham Tabassi or Patrick Grother   

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