3 ms·
Difficulty of lifting a good print is probably proportional to the resolution needed. Ie, you need a higher quality print to get a higher resolution image to co
by gfodor 13y ago
Difficulty of lifting a good print is probably proportional to the resolution needed. Ie, you need a higher quality print to get a higher resolution image to contain additional information.
- XorNot 13y agoI'm actually pretty skeptical this is the case. Fingerprint data is noisy - it has to tolerate a high degree of error. I suspect the problem is actually that you need to smooth it out appropriately to make the sensor not get tripped up by non-biological noise. I'd be really curious to see what you could do with a high-resolution smartphone camera and a little image processing.
- drakaal 13y agoI am guessing I can beat it with a good pen. As you say it has to be tolerant. If you have a little grunge on your finger, or a cut, or get a tan or there is grunge on the sensor it still has to work. Also, there are a lot fewer fingerprints than the world has been lead to believe. Especially since we each have 10 to try, since the phone only checks 1.