In Prison Break season 5 Michael Scofield prints Jacob's face on his hand to beat facial recognition system to access his office.
Wouldn't it be easy to fool system with printing on paper or 3-D cast ? And. .
How realistic is Michael's method ?
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Before Answering the question let me give a small outline .
Face Recognition works different in different applications . Lets take smart phones ,
Early in 2011-13 , when Andriod introduced Face Recognition for lockscreen in Andriod 4 (Ice Cream Sandwich) it could be fooled by a Photo but not with another face . So at this stage it can differentiate between faces but not the real and fake (3d and 2d object). This is a Problem.
Now Iphone X has this Face ID thing , which can recognise whether you have the attention (eyes on phone). It cannot be fooled with a photo (2d) . It certainly differentiates between a 2d and 3d object . That Problem is no more an issue . But even with this case there are 3d printed photos ( Masks to be precise ) , which are claimed to fool the Iphone x too . Claiming to Fool Iphone X
Samsung has IRIS scanner people claim even it can be fooled, I think pairing this with face recognition may increase it's security .
Now coming to answer , (I Dont remember episode exactly just watched that part now)
Because Face Recognition only depends on the face and not the tiny details like breathing or blinking the eye , It can always be fooled either by a 3d mask or who knows Skin mask with a actual hair wig and colors which match 100% .
To anyone who is reading this working on a Face Recognition tech , I would love you to associate Face Recogntion with face gestures . Like when i look at the screen and blink my eyes .
So somewhere in future we may have Technology which even over comes this problem .