The face should be good to work with different lighting conditions, regardless of whether the device handling in portrait or landscape. The influence of light conditions to reduce distortions and biometrics, it will succeed to the right person to recognize. These are not so much a security measure, which the measurement should be 100% accurate, but rather a tool to personalize. It is given eyes, mouth or tip of the nose. Since little energy technology may face constantly active.
Apple had a patent in June 2009, but as always with patents is a long time before the content is published on the USPTO. As inventor named Robert Mikio Free. A year later, in September 2010, Apple bought a Swedish company that specializes in face recognition. The company called Polar Rose makes a product called Recognizr and would have purchased $ 29 million.