Super-recognisers
Most people are good at recognising familiar faces. Some may even identify the pixelated faces above: Michelle Obama, George Clooney, and Ellen DeGeneres.
Matching unfamiliar faces can be surprisingly difficult, even when conditions are good. This matters in real-world settings, such as matching a traveller to a passport or a CCTV image to a police mugshot.
A small minority of people show exceptional ability for both familiar and unfamiliar faces. These individuals are known as super-recognisers.