Reverse-Engineered Irises Fool Eye-Scanners
Ok, so current systems can be tricked with photographs, and that seem pretty silly. But future versions could record stereo images while altering the illumination of the subject's eye. Properly functioning (attached) human eyes should have irises that dilate with extreme changes to illumination. By masking the subjects eye or eyes from the surrounding environment and changing the illumination levels over time, a complex system could measure pupil dilation characteristics to evaluate if the eye before it is valid and alive. Randomly timed flashes would be hard to predict and might cause predictable blinking in most humans in addition to dilation changes. By using stereo images, the system could also verify the 3 dimensional shape of the changing iris, which would be much harder to fake with pictures.
Add an infrared camera to mesure eye temperature and faking iris with a screen gets even harder.
The Link Between Genius and Insanity
"The distance between insanity and genius is measured only by success." from Tomorrow Never Dies (1997)
Google Wave Preview Opens Up On Sept 30th
Wave is the future, but does anybody know the transition plan to move the entire planet from email/IM to wave? Whats the migration path? Is wave backward compatible with email or IM?
Can you afford to cut up your credit cards?
Why the heck would you want to report them? It's Visa's policy, fine, but I don't want to be some snitch going around busting someone because they are doing a "good thing". Thats just silly. Hopefully your intention was just to point out that Visa has this policy and not because you are an impatient jerk who cares more about following some corporation's rules and ratting people out because you had to spend 2 whole seconds digging thru your duct tape wallet.