Databases - DB4

Database features:

  • the fingerprints were synthetically generated by using SFinGe.
  • the image size is 240x320.
  • the parameters of the synthetic generator were tuned to emulate a low-cost sensor with a small acquisition area.
  • the maximum rotation and displacement and skin-distortion are adjusted to roughly reproduce the perturbations in the other databases (DB1, DB2 and DB3).

Sample images from DB4; each row shows different impressions of the same finger:

Images from DB4; all the samples are from different fingers and are ordered by quality (top-left: high quality, bottom-right: low quality):


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