From a technical point of view, the process is based on treating 3D data, collected either by Ct scan, laser surface scans, or photogrammetry. The 3D skull is then incorporated in our sculpting software for the application of forensic techniques (anatomical & anthropometrical). This objective science part is done in close collaboration with the science teams (pathologists, forensics, archaeologists, historians, conservators, paleopathologists).
A second phase consists of using artistic techniques to create the living face from the anatomical one, with CGI work pipeline, photography, and illumination art. The sculpting is done by hand. This is the phase in which decisions about facial expressions are taken in collaboration with the clients.
When completed, the data must be calculated by the computer. Some pictures take minutes, other hours. For a movie clip, 30 frames have to be calculated to obtain 1sec of film.