evaluate each pixel independently, uses alpha channel to determine between foreground,
background and label to destinguish between face and occlusion/non-face.
The face region is labeled as 1 (according to the following publication)
This evaluator is an implementation of Equation 2, 4, 5 and 7 of:
Occlusion-aware 3D Morphable Face Models,
Bernhard Egger, Andreas Schneider, Clemens Blumer, Andreas Morel-Forster, Sandro Schönborn, Thomas Vetter
IN: British Machine Vision Conference (BMVC), September 2016
https://dx.doi.org/10.5244/C.30.64
evaluate each pixel independently, uses alpha channel to determine between foreground, background and label to destinguish between face and occlusion/non-face.
The face region is labeled as 1 (according to the following publication)
This evaluator is an implementation of Equation 2, 4, 5 and 7 of: Occlusion-aware 3D Morphable Face Models, Bernhard Egger, Andreas Schneider, Clemens Blumer, Andreas Morel-Forster, Sandro Schönborn, Thomas Vetter IN: British Machine Vision Conference (BMVC), September 2016 https://dx.doi.org/10.5244/C.30.64