Systems and processes for video spoof detection based on liveliness evaluation

摘要

The present invention provides a process for determining whether a video for a biometric feature is a spoofed or live recording of a live biometric feature, the process comprising: - pre-processing (200) the video; (J) for each frame of the plurality of frames (j), and determining the score of each frame of the set of preceding frames based on the motion intensity of the current frame (j) Calculating (322,325) the difference between motion intensities; deriving (324,326) the differential motion intensity of the current frame from the difference; calculating motion of the video from differential motion strengths of the plurality of frames Comparing the motion intensity to a predetermined threshold value (340), comparing the motion intensity to a predetermined threshold value (340), comparing the motion intensity to a predetermined threshold value Comprising the step of assigning a score lively, - a step (400) in accordance with lively score of the video, determine whether the video recording is that the spoofing of the biometric characteristics or genuine recording.