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Viewing report
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Fingerprint Template Compression. Edition No. 1
VDM Publishing House, Oct 2008, Pages: 128
Especially for verification purposes fingerprint
templates become ever more important. Thereto in
order to recognize a person a reference template must
be available, which can be stored for instance in a
database or on a RFID chip. With regard to mobile
storage media, and thus only a small amount of
memory, a need for compression arises. Such a
compression can be lossy, possible errors in the
recognition however, should be kept as small as
possible. In this book a new approach for the
compression of fingerprint templates is presented.
Such templates contain information about the
positions and orientations of the so-called minutiae,
which are in turn represented in the form of
d-dimensional points. So, the focus lies on the study
of graph-based approaches. The basic idea is to store
the difference vectors between always two points
instead of the minutiae. Since for this purpose
directed spanning trees allow an efficient encoding,
different approaches based on various spanning trees
are studied and evaluated.
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