3D skull models 1 3d skull model 1 ANINet 1 Ancestry classification 1 Cross validation 1 Cross-validation 1 Deep neural networks 1 Depth image 1 Depth projection 1 Estimation methods 1 Facial reconstruction Image Processing, Computer-Assisted 1 Image enhancement 1 Labour-intensive 1 Neural Networks, Computer 1 Skull 1 Skull models 1 article 1 calibration 1 cross validation 1 deep neural network 1 diagnostic imaging 1 image processing 1 learning 1 major clinical study 1 residual neural network 1 skull 1