(Updating)
https://ibug.doc.ic.ac.uk/resources/2nd-facial-landmark-tracking-competition-menpo-ben/
https://ibug.doc.ic.ac.uk/resources/300-W/
https://neerajkumar.org/databases/lfpw/
http://www.ifp.illinois.edu/~vuongle2/helen/
https://www.tugraz.at/institute/icg/research/team-bischof/lrs/downloads/aflw/
https://github.com/microsoft/FaceSynthetics
http://www.cbsr.ia.ac.cn/users/xiangyuzhu/projects/3DDFA/main.htm
https://ibug.doc.ic.ac.uk/resources/300-W/
http://www.vision.caltech.edu/xpburgos/ICCV13/#dataset
https://ibug.doc.ic.ac.uk/resources/2nd-facial-landmark-tracking-competition-menpo-ben/
http://www.cbsr.ia.ac.cn/users/xiangyuzhu/projects/3DDFA/main.htm