Techniques of 2D-3D superimposition are widely used in cases of personal identification from video surveillance systems. However, the progressive improvement of 3D image acquisition technology will enable operators to perform also 3D-3D facial superimposition. This study aims at analyzing the possible applications of 3D-3D superimposition to personal identification, although from a theoretical point of view. Twenty subjects underwent a facial 3D scan by stereophotogrammetry twice at different time periods. Scans were superimposed two by two according to nine landmarks, and root-mean-square (RMS) value of point-to-point distances was calculated. When the two superimposed models belonged to the same individual, RMS value was 2.10 mm, while it was 4.47 mm in mismatches with a statistically significant difference (p < 0.0001). This experiment shows the potential of 3D-3D superimposition: Further studies are needed to ascertain technical limits which may occur in practice and to improve methods useful in the forensic practice.

A View to the Future: A Novel Approach for 3D-3D Superimposition and Quantification of Differences for Identification from Next-Generation Video Surveillance Systems / D. Gibelli, D. De Angelis, P. Poppa, C. Sforza, C. Cattaneo. - In: JOURNAL OF FORENSIC SCIENCES. - ISSN 0022-1198. - 62(2017), pp. 457-461. [10.1111/1556-4029.13290]

A View to the Future: A Novel Approach for 3D-3D Superimposition and Quantification of Differences for Identification from Next-Generation Video Surveillance Systems

D. Gibelli
Primo
;
D. De Angelis
Secondo
;
P. Poppa;C. Sforza
Penultimo
;
C. Cattaneo
Ultimo
2017

Abstract

Techniques of 2D-3D superimposition are widely used in cases of personal identification from video surveillance systems. However, the progressive improvement of 3D image acquisition technology will enable operators to perform also 3D-3D facial superimposition. This study aims at analyzing the possible applications of 3D-3D superimposition to personal identification, although from a theoretical point of view. Twenty subjects underwent a facial 3D scan by stereophotogrammetry twice at different time periods. Scans were superimposed two by two according to nine landmarks, and root-mean-square (RMS) value of point-to-point distances was calculated. When the two superimposed models belonged to the same individual, RMS value was 2.10 mm, while it was 4.47 mm in mismatches with a statistically significant difference (p < 0.0001). This experiment shows the potential of 3D-3D superimposition: Further studies are needed to ascertain technical limits which may occur in practice and to improve methods useful in the forensic practice.
forensic anatomy; forensic anthropology; forensic science; personal identification; stereophotogrammetry; video surveillance system
Settore BIO/16 - Anatomia Umana
Settore MED/43 - Medicina Legale
2017
28-nov-2016
Article (author)
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/459780
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