The invention relates to a method for registering fingerprint information via
a sensing surface A. The method comprises scanning part surfaces A1
in the sensing surface A, checking whether the centre point P1, with
its immediate surrounding area A"1, of each scanned part surface A1
is unique within the part surface A1, and registering
a first number of centre points P1 which, with their respective immediate
surrounding areas A"1, are unique within their respective part surfaces
A1. The respective immediate surrounding areas A"1 of
the points and the respective part surfaces A1 of the points
are also registered.
The invention also relates to a method for verifying fingerprint information,
in which verification is carried out on the basis of registered information relating
to a fingerprint which is to be approved in the verification method. The method
comprises a number of part surfaces A1 with their respective
centre points P1 in the fingerprint whose information is registered
being compared with corresponding part surfaces A2 on the sensing
surface A. If there is a point P2 on a part surface A2
on the sensing surface A which, with its immediate surrounding area A"2,
corresponds to the registered centre point P1, including its immediate
surrounding area A"1 in the corresponding stored part surface A1,
the point P2 with its part surface A2 is approved.
If a certain number of points P2 with associated part surfaces A2
have been approved, these are selected for a first step in further processing.