“…Deep learning algorithms have received increasing attention in the face recognition field, and many researchers discovered the importance of studying 3D face recognition (Maiti, Sangwan & Raheja, 2014;Min et al, 2012;Pabiasz, Starczewski & Marvuglia, 2015;Porro-Munoz et al, 2014;Hu et al, 2017;Sun et al, 2015;Wu, Hou & Zhang, 2017;Tang et al, 2013;Zhang, Zhang & Liu, 2019). On one hand, extracting 3D face information is the key step in 3D face recognition: effective face detection and alignment can increase the overall performance of 3D face recognition, which is critical in both security and commercial 3D face recognition systems.…”