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FACE LIVENESS DETECTION USING BACKGROUND/FOREGROUND MOTION ANALYSIS

  • US 20190026544A1
  • Filed: 02/08/2017
  • Published: 01/24/2019
  • Est. Priority Date: 02/09/2016
  • Status: Active Grant
First Claim
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1. A method of determining face liveness, comprising:

  • receiving, at a processor of a face recognition system and from an image capture device of the face recognition system, a time-stamped frame sequence;

    identifying corresponding pixels for each pair of sequential frames in the time-stamped frame sequence;

    segmenting one of each pair of sequential frames in the time-stamped frame sequence into regions of interest;

    calculating a motion feature for each region of interest of each pair of sequential frames in the time-stamped frame sequence;

    generating a preliminary face-liveness determination for each pair of sequential frames in the time-stamped frame sequence, based on a comparison of the calculated motion features for each region of interest of the pair of sequential frames; and

    making a final face-liveness determination based on the generated preliminary face liveness determinations.

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