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Login to the "face"

The company Luxand , which specializes in face recognition, has released a new version of its free OS authorization program “by face” called Blink! . Now you can log in simply by looking at the webcam of your laptop. and it is much more convenient than entering a password every time, and even safer. The main thing is that the program can always recognize you, but here, as the developers assure us, there shouldn't be any problems, they promise Blink! recognizes your face, even if you:

The promises sound quite attractive, and the very idea of ​​authorization on the face seems to me interesting and promising, so I decided to install the program and see how it copes, who are interested, welcome tackle. Yes, Blink! You can download it here .

And here you can look at other company developments.



Installation is simple to disgrace. Having chosen where we want to install the program, we wait for 5 seconds and see the webcam selection menu:

Then, we are offered to "remember the face":

To do this, looking at the monitor, slowly turn your head:

After that, it remains only to enter your account password and all:
You can restart the computer in order to verify the effectiveness.


So, the test itself. To grow a beard for a long time, and somehow there is no desire to be painted ... so I checked not all, but some of the promised things that are not confused by the program. The program has two modes of recognition: High Convenience and High Security, respectively: it recognizes better or more security. Below is a table describing (or showing) tests and results.
My face / program modeHigh ConvenienceHigh security
imageAccess is allowedAccess is allowed
imageAccess is allowedAccess denied
imageAccess is allowedAccess denied
Low lightAccess deniedAccess denied
Side light (shadow covers half of the face)Access deniedAccess denied
The results are quite good: in the priority recognition mode, neither glasses nor a bandana became an obstacle for identification. The security priority mode was safe and missed only the face without distortion. But with the light things are bad, with a lack of light it was not possible to pass the test, even after 5 minutes of heading in front of the webcam. Moreover, the program in principle can not find a person, perhaps you need a more expensive webcam, rather than a built-in laptop.

Now, the most interesting, we realized that the program copes with its task as a whole, but will it cope with the attempt of forgery? How to fake a face? The most obvious way is photography! Here there is such a thing, the worse the webcam, the larger the photo you need, because the small one has to be brought very close, and there it is already out of focus. I took a photo from the table, without glasses and other things, brought it to the TV and brought a laptop to it ... voila ... login occurred! And in security priority mode too !!! Those. the program failed to distinguish a living person's face from a photo. Negative, crossing out everything, because the program promised some security, and so ... it only protects from those who cannot get your photo ... (by the way, with a good webcam, which I could borrow for a couple of minutes, I managed to get authorization to the screen where my avatar was from contact ...).


The program did not meet expectations and does not fulfill its task. So its only purpose is to have a little fun and surprise your friends with an unusual way of launching the laptop ... a pity, the idea was good.

Source: https://habr.com/ru/post/101692/

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