System for liveness determination using several models

System for determining liveness of a target person comprising

• a frame capture module configured to acquire a series of frames;
• a face detection module configured to detect a face of a target person in each of the frames of the series acquired by the frame capture module;
• a frame quality module configured to determine at least one quality feature from each frame of the series acquired by the frame capture module;
• a quality filtering module configured to reject or accept each frame of the series based on a comparison between at least one predefined capture condition and at least a first quality feature among the at least one quality feature of the frame extracted by the frame quality module;
• a first scoring module arranged to receive as input a detected face of a target person in a frame, if said frame is accepted by the quality filtering module, and to determine a first score based on the detected face of the target person;
• a second scoring module arranged to receive as input the at least one quality feature extracted from a frame, if said frame is accepted by the quality filtering module, and to determine a second score based on at least one second quality feature among the at least one quality feature of the frame extracted by the frame quality module;
• a fusion module configured for attributing a final score representative of liveness of the target person based at least on the first score and the second score.