Restriction against smiling in passport photos stems from the need for accuracy in facial recognition software, which depends on unaltered facial proportions.

She says: 'Algorithms don't work as we do. To compare a 3D face with a 2D passport photo, they need to pinpoint and measure the users' facial features. 'It includes the distance between the ...

mute-poet/Reddit Clarifying that "picture day" was actually an appointment for his passport photo, Nico embraced the ... to stuff like that, my whole face turns neon pink." Others saw a lesson ...