A major integrative effort within the BioSecure Network of Excellence
lies with the design and collection of a new multimodal database.
The BioSecure database has
been designed to include data corresponding to face, voice, iris,
fingerprint, palm print and signature modalities, within the
framework of three datasets corresponding to real multimodal,
multi-session, multi-environment situations.
Moreover, to increase
the representativeness of the database, BioSecure participants agreed
to collect the above mentioned data in a variety of sites (11 at the
end) involving a number of countries spread over Europe. Not all the
centers contributed to the acquisition of the three datasets.
Nevertheless, each acquisition center completed for about 100
individuals the acquisition of the whole set of data (two sessions
per person) for the datasets they were in charge.
The three datasets have the following characteristics:
-
Dataset DS1 (PC-based, on-line,
Internet environment, unsupervised conditions•)
- Modalities included:
voice, face;
- Donors: 971;
- The main purpose of DS1 is
to have material collected over the Internet and under uncontrolled
situations. In this way, a broad target population can be reached and
a quite realistic database can be acquired. The first session was
necessarily guided. For the second session, the donor had the
opportunity to use any Internet connection (from home, work, ...).
- Dataset DS2 (PC-based, off-line,
desktop environment, supervised conditions):
- Modalities included:
voice, face, signature, fingerprint, hand and iris;
- Donors: 667;
- The scenario considered
for the acquisition of DS2 is a PC-based offline supervised scenario.
It consists of an office room, with a wide desktop for the
acquisition hardware and two comfortable chairs for the supervisor
and the contributor.
- The acquisition hardware
includes a standard PC machine and a number of data acquisition
sensors connected to the PC via USB or Bluetooth interfaces.
- Dataset DS3 (mobile device-based,
indoor/outdoor environment, uncontrolled conditions):
- Modalities included:
voice, face, signature and fingerprint;
- Donors: 713;
- The objective of this
dataset is to have a multimodal database with several modalities
acquired on current mobile platforms. For audio-video recordings two
different acquisition conditions are considered: indoor and outdoor,
with sources of variability for each modality. For signature and
fingerprint recordings only one degraded acquisition condition is
considered, because controlled quality data are recorded in DS2.
- Hardware devices used for
the acquisition include a PDA HP iPAQ hx2790 (for fingerprint and
signature) and a Mobile PC SAMSUNG Q1 + Web Cam (for face and voice).
A detailed documentation about the BioSecure database can be downloaded here:
-> BioSecureDatabase.pdf
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