Android 4.0 (Ice Cream Sandwich) added the possibility to unlock the screen of our device with facial recognition, but this release was not very secure, either with a photo of our could unlock the screen of your device.
In Android 4.1 (Jelly Bean) improved the facial unlock by adding the option that we have to blink to unlock the screen, but despite being a little safer anyone who had a photo of our and Photoshop expertise could simulate with two photos a flicker.
Despite everything still facial Android unlock security can be improved enough, and that is what you can read on the patent that Google has succeeded in the past June 4, 2013, in which speak of Recognizing facial gestures to unlock screen.
Patent 8457367, despite being published this week, was filed June 26, 2012, and in this patent, in addition to mention have to blink to unlock the screen, speaks of more types of facial gestures to avoid phishing with photos or videos.
To the current parpadeose, according to the patent, could add new gestures as wink an eye, an eye movement, smile, frown, remove the language, open mouth, move the eyebrows, wrinkling the forehead or nose. The patent mentions that the user could predefine that gesture made to unlock the screen or that it is the system which request to perform every time a particular facial gesture to unlock screen.
It is unknown if Google will implement more facial gestures to unlock the screen of your Android device. The only thing certain is that Google already has the patent for unlocking facial gesture recognition, which could implement it without any problems in future versions of Android. Perhaps one of the new Android 4.3 (Jelly Bean), since the patent has almost a year.