Development of three-dimensional facial approximation system using head CT scans of Japanese living individuals

•A software for 3D facial approximation from the skull based on CT scans of Japanese individuals was developed.•The analyses were made by creating anatomically homologous shape models.•The approximate head shapes of known individuals showed a relatively good resemblance.•Approximation errors were identified, particularly in areas with thick surficial tissue.•Referential models for the craniofacial superimposition were made.