Real-time dense 3D face alignment from 2D video with automatic facial action unit coding
László A. Jeni, Jeffrey M. Girard, Jeffrey F. Cohn, Takeo Kanade · 2015
Face alignment is the problem of automatically locating detailed facial landmarks across different subjects, illuminations, and viewpoints. Previous methods can be divided into two broad categories. 2D-based methods locate a relatively small number of 2D fiducial points in real time while 3D-based methods fit a high-resolution 3D model offline at a much higher computational cost.