Verification method and system
AssigneeEyn Limited
InventorsHasan Sheikh Faridul, Mohamed Ben Arbia
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to a method of determining whether a live human face is present for use as part of a facial recognition system and/or method, whereby a moving stimulus is generated. Human face movement in response to the generated stimulus is predicted using a model. The stimulus is presented to a face of a person. A movement of the face in response to the stimulus is tracked using a camera, and it is determined whether a live human face is present by comparing the movement of the face against the prediction.
Claims18
A method of determining whether a live human face is present, comprising:
- generating a moving stimulus;
- predicting, using a model, human face movement in response to the presentation of said generated moving stimulus on a screen, wherein the model models a predicted correspondence distance between a modelled location of a gaze of a human face on the screen and a location of the said generated moving stimulus on the screen at a particular time;
- presenting the generated moving stimulus on the screen to a presented human face;
- using a camera for tracking a movement of the presented human face in B response to the generated moving stimulus presented on the screen, wherein tracking the movement of the presented human face comprises:
- determining a tracked location of the gaze of the presented human face on the screen;
- tracking a movement of the tracked location of the gaze of the presented human face;
- and
- calculating a correspondence distance between the tracked location of the gaze of the presented human face and the location of the generated moving stimulus on the screen at a particular time;
- and
- determining whether the presented human face is a live human face by comparing the predicted human face movement against said tracked movement of the presented human face.
A system for determining whether a live human face is present, comprising:
- a user device, comprising:
- a module adapted to generate a moving stimulus;
- a module adapted to present the generated moving stimulus on a screen to a presented human face;
- a module adapted to track a movement of the presented human face in response to the generated moving stimulus which is presented on the screen by:
- determining a tracked location of a gaze of the presented human face on the screen;
- tracking a movement of the location of the gaze of the presented human face;
- and
- calculating a correspondence distance between the tracked location of the gaze of the presented human face and the location of the generated moving stimulus on the screen at a particular time;
- and
- a remote prediction module adapted to predict, using a model, human face movement in response to the presentation of said generated moving stimulus, wherein the model models a predicted correspondence distance between a modelled location of a gaze of a human face on the screen and a location of the said generated moving stimulus on the screen at a particular time;
- a remote determination module adapted to determine whether the presented human face is a live human face by comparing the tracked movement of the presented human face against said predicted human face movement.
Dependencies are inferred from the claim text.