This is an active capacitance swipe-type device similar to but smaller
than the AES2501.
Image processing performance is good but matching performance is not so
good. The bozorth3 matcher needs tweaking in order to better cope with
small sets of minutiae.
With a lowered threshold, matching performance is good enough for now.
The UPEK TouchChip is an active capacitance imaging device with a
press-type sensor. It also has image storage capabilities which will
hopefully be accessible through libfprint in the near future.
This device can be found in the Samsung P35 laptop.
Timo Teräs
Vasily Khoruzhick
Hugo Grostabussiat
Anthony Bretaudeau
Jan-Michael Brummer
Daniel Drake