Facebook already collects information from your photos to suggest tags for your friends when they upload new pictures.
Now it looks like the social networking site could be taking things up a level.
Researchers from Facebook's artificial intelligence team have been working on technology that aims to recognise someone even if their face isn't clearly shown in the photo.
The algorithm looks at more than 100 different body parts.
It's used in combination with facial recognition and whole body recognition technology.
