Thanks for the idea. I'll try digging into the driver and upping the threshold.
It's a Microsoft Fingerprint Reader, which uses the uru4000 driver in libfprint. lsusb reports it like this: Bus 003 Device 009: ID 045e:00bd Microsoft Corp. Fingerprint Reader Here's a picture: http://canta.ucsd.edu/~kmowery/fp.jpg Thanks again! Keaton On Tue, Jun 5, 2012 at 6:10 PM, Juvenn Woo <mach...@gmail.com> wrote: > Hi Keaton, > > I'm not an expert here, but there're two links might help you a little: > > http://www.freedesktop.org/wiki/Software/fprint/libfprint/Imaging%20performance > http://www.freedesktop.org/wiki/Software/fprint/libfprint/Driver%20quality > > Basically, I think there's a threshold for each driver, may be you can make > it higher for your purpose. I can not identify your device specification, > and do not know which driver does it use. Or maybe I can have a look for > you. > > best, > -- > jv ♫ > > > > On Wed, Jun 6, 2012 at 4:45 AM, Keaton Mowery <kmow...@gmail.com> wrote: >> >> Hi all, >> >> I recently wrote a small fprintd using libfprint and deployed it on >> our biometric soda machine at UCSD. Registration works great, and >> recognition of registered fingers is also working fine. Unfortunately, >> we're having some trouble with non-registered fingerprints. Namely, >> they are recognized as other, registered fingerprints. >> >> We're using libfprint 0.4.0 with a Microsoft Fingerprint Reader device >> ( >> http://www.amazon.com/Microsoft-DG2-00002-Fingerprint-Reader/dp/B0002WPSB2 >> ). Our code is here: >> >> fpserv_async.cpp: http://pastebin.com/EkehWnJu >> fpserv.cpp: http://pastebin.com/Dtq2upLR >> >> Any ideas? If we can't discover this, I may have to roll my own fp >> detection, and that would be unfortunate. Thanks. >> >> Keaton Mowery >> UC San Diego >> _______________________________________________ >> fprint mailing list >> fprint@lists.freedesktop.org >> http://lists.freedesktop.org/mailman/listinfo/fprint > > _______________________________________________ fprint mailing list fprint@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/fprint
