How Facebook REALLY sees you: 'monster' faces show how machines see us

Facebook has created an algorithm that can pick a face out of a crowd almost as accurately as a human. Called DeepFace, it uses technology the firm bought when it acquired Israeli startup face.com last year. Its creators say it pick a face out of a crowd with 97.25 per cent accuracy. Facebook's DeepFace uses a 3-D model to rotate faces, virtually, so that they face the camera. Image (a) shows the original image, and (g) shows the final, corrected version which the software can then attempt to recognise.