Liveness detection

摘要

The present disclosure concerns a method of verifying the presence of a living face in front of a camera (112), the method including: capturing by said camera a sequence of images of a face; detecting a plurality of features of said face in each of said images; measuring parameters associated with said detected features to determine whether each of a plurality of liveness indicators is present in said images; determining whether or not said face is a living face based on the presence in said images of a combination of at least two of said liveness indicators.

主权项

1. A computer-implemented method comprising:
receiving a sequence of images of a face; for each facial feature of a plurality of facial features of the face, obtaining a feature score that reflects an amount of motion exhibited by the facial feature in the sequence of images; for each subset of multiple different subsets of the plurality of facial features: aggregating the respective scores associated with the features of the subset, and determining whether the aggregated score for the subset satisfies a liveness criteria associated with the subset; and classifying the face as a reproduction of a face based at least on determining that none of multiple different subsets has an aggregated score that satisfies the liveness criteria associated with the respective subset.