os_abbas
Newbie level 2
we have a problem in matching:
we have a data base of fingerprint taken by veridicom sensor with
size 256*300 and we apply the following functions on the fingerprint
to get the features:
1-Orientation field
2-Binarization
3-Segmentation
4-Thining
5-Feature extraction
our features are the distance between each minutiae and its nearest 6
minutiaes , the difference angle between each minutiae and the same
nearest 6 minutiaes.In our matching technique we compare each distance
around each minutiae of the online fingerprint with the 6th distances
of the minutiae of the template fingerprint that has the same type
by subtracting the the distance with each of the 6 distances.
also we make this for the diffrence angle.if there is at least 3
minutiaes have near distances and near diffrence angles we say that
the minutiae in the online matched with that in the template.
our problem is the threshold of the subtraction of the distances
and that of the diffrence angles ,we try many methods to get that
threshold and we fail.so any one can help to get that
threshold or suggest any other method for matching technique but
with a given values of the used threshold as we will deliver our
graduation project soon.
we have a data base of fingerprint taken by veridicom sensor with
size 256*300 and we apply the following functions on the fingerprint
to get the features:
1-Orientation field
2-Binarization
3-Segmentation
4-Thining
5-Feature extraction
our features are the distance between each minutiae and its nearest 6
minutiaes , the difference angle between each minutiae and the same
nearest 6 minutiaes.In our matching technique we compare each distance
around each minutiae of the online fingerprint with the 6th distances
of the minutiae of the template fingerprint that has the same type
by subtracting the the distance with each of the 6 distances.
also we make this for the diffrence angle.if there is at least 3
minutiaes have near distances and near diffrence angles we say that
the minutiae in the online matched with that in the template.
our problem is the threshold of the subtraction of the distances
and that of the diffrence angles ,we try many methods to get that
threshold and we fail.so any one can help to get that
threshold or suggest any other method for matching technique but
with a given values of the used threshold as we will deliver our
graduation project soon.