Fråga: Lura Iris?

någon som har testat?

 

Jag har suttit ett antal minuter efter att ha tagit bilder på mig själv med en annan mobil, försökt zooma in bilen på bara ögonen o hela huvudet men lyckas inte.

 

vad händer om du reggar bilderna men försöker låsa upp med ögonen?

 

tror det är svårt.. då en iris scanner är mer komplex än en bild..

"First, all the people the system needs to know about have to have their eyes scanned. This one-off process is called enrollment. Each person stands in front of a camera and has their eyes digitally photographed with both ordinary light and invisible infrared (a type of light used in night vision systems that has a slightly longer wavelength than ordinary red light). In iris recognition, infrared helps to show up the unique features of darkly colored eyes that do not stand out clearly in ordinary light. These two digital photographs are then analyzed by a computer that removes unnecessary details (such as eyelashes) and identifies around 240 unique features (about five times more "points of comparison" as fingerprint systems use). These features, unique to every eye, are turned into a simple, 512-digit number called an IrisCode® that is stored, alongside your name and other details, in a computer database. The enrollment process is completely automatic and usually takes no more than a couple of minutes"
http://www.explainthatstuff.com/how-iris-scans-work.html

nu tror jag samsungs är lite mindre avancerad än så, men bygger ändå på samma sätt
och precis som i note 7 så använder den en separat infrakamera till att identifiera ögat

" But an iris scanner doesn't just take a picture of your eye to compare against whatever it has on record. In actuality, the procedure starts with a beam of near-infrared light directed at the person's eye. This kind of light works better than visible light since it exposes the pattern of the iris much more clearly, thus making it easier for a camera to capture it. Besides, it allows the iris scanner to work in the dark. Prescription glasses and contact lenses (not colored!) do not block the beam either. Once the image has been recorded, an intelligent piece of software translates the iris' pattern into code. This code is then compared against a record in search of a match. ."
http://www.phonearena.com/news/Here-is-how-the-Galaxy-Note-7-iris-scanner-works_id82854