[fprint] New driver for AuthenTech AES3500

Juvenn Woo machese at gmail.com
Wed May 8 18:16:28 PDT 2013

Hi Dan,

Thanks for confirmation, I thought it was just AES3500 performs badly.

Is it the matching approach (i.e. minuates detection and matching in NBIS)
that poses a limitation on verification of these kind devices?

Is the Windows driver using a completely different approach on verification?

Sorry, my experiences are very limited, would very much like to get your
advice! Thanks!

jv ♫
m: (+86) 156 5238 4808

On Wed, May 8, 2013 at 10:03 PM, Daniel Drake <dan at reactivated.net> wrote:

> El 08/05/13 02:54, Juvenn Woo escribió:
>  Dear all,
>> I'm submitting the AES3500 driver for peers to review.
>> The AES3500 is a pretty old fingerprint device produced by AuthenTech. It
>> possesses a *press-typed* sensor of dimension in 128x128. Which is
>> similiar to AES4000, except the later is in 96x96.
>> The driver is a deriative work of Daniel Drake's AES4000 driver, with a
>> few parameters tuned for AES3500. While there seems no problem scanning
>> fingerprint images with it, the verification rate is pretty low at the
>> moment.
> The AES4000 driver performs badly as well. As you've commented, the likely
> problem is that only a tiny area of the finger is sampled.
> I imagine the windows driver (where the sensor seems to perform OK) has a
> fingerprint processing engine heavily tuned to small amounts of data. It's
> probably quite insecure as a result.
> Thanks for the contribution!
> Daniel
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