The Warwick Warp BioLog is faster and more accurate than other fingerprint scanners out there, especially ones that require a PIN number, card or perfect print. It's not because it's using some fancy new sensor, though. The real magic is in the approach.
To test their Warp scanning technology, researchers at the University of Warwick in the UK decided to give themselves a stiff challenge: construction sites. That means dirty fingers, smudges, torn skin and a lot of workers looking to get on and off a site quick—so no lingering, dainty finger presses. The Warp Biolog will take all comers, storing these low-quality prints instead of asking for a clean read. The system considers what it can and can't see, using its database to quickly extrapolate what the rest of the print should look like based on a mathematical model and match it to the finger's owner in the system.
The Warwick Warp tech is so accurate that it's won some high marks in a tough field. The UK's National Physical Laboratory ranked it first for overall accuracy, and the National Institute of Standards and Technology here in the US gave it third place.
[CNET]