Real-time Face Liveness Detection¶
The face liveness detection can be enabled only on the GPU-accelerated video face detector
To spot fake faces and prevent photo attacks, use the integrated 2D anti-spoofing system that distinguishes a live face from a face image. Due to the analysis of not one, but a number of frames, the algorithm captures any changes in a facial expression and skin texture. This ensures that it is a live person in front of a camera and eliminates the possibility of fraud using images on paper or mobile device screens.
The liveness detector estimates a face liveness with a certain level of confidence and returns the confidence score along with a binary result
real/fake, depending on the pre-defined liveness threshold.
To enable the face liveness detector, do the following:
/etc/findface-video-worker-gpu.iniconfiguration file. In the
fnkparameter, specify the path to the face liveness detector model as shown below.
sudo vi /etc/findface-video-worker-gpu.ini [liveness] #------------------------------ ## path to liveness fnk fnk = /usr/share/findface-data/models/faceattr/liveness.v1.gpu.fnk
sudo systemctl restart findface-video-worker-gpu
Once the face liveness detector enabled, the
findface-video-worker-gpu service will be posting face liveness data to
findface-facerouter in the
liveness key of the
detectorParams dictionary. To process a face according to its liveness, write a plugin.