3D-3D facial superimposition between monozygotic twins: A novel morphological approach to the assessment of differences due to environmental factors

This study aims at exposing an innovative method for the facial assessment in monozygotic twins for personal identification, based on the registration and comparison of 3D models of faces.Ten couples of monozygotic twins aged between 25 and 69  years were acquired twice by a stereophotogrammetric system (VECTRA-3D® M3: Canfield Scientific, Inc., Fairfield, NJ); the 3D reconstruction of each person was then registered and superimposed onto the model belonging to the same person (self-matches), the corresponding sibling (twin-matches) an d to unrelated participants from the other couples (miss-matches); RMS (root mean square) point-to-point distances were automatically calculated for all the 220 superimpositions.
Source: Legal Medicine - Category: Forensic Medicine Authors: Source Type: research