Dental Biometrics Used in Forensic Science
نویسندگان
چکیده
Dental biometrics used in forensic science for human identification. It utilizes dental radiographs. This radiograph provides information related to teeth shape, teeth contour and relative position of neighboring teeth, also it gives shapes of dental work like crowns, filling & bridges etc. This paper includes different method used for dental biometrics and related information. Dental biometrics requires antemortem (AM) and postmortem (PM) radiographs for finding unidentified subject. Dental biometrics having three stages: Preprocessing and segmentation of radiographs, Contour extraction or dental work extraction, Atlas registration and matching. Segmentation can be done by various methods that are mentioned in this paper. Contour or shape of teeth and dental work can be extracted by using active contour model (ACM) or active shape model (ASM) methods. Atlas registration is the method used for labeling to teeth, which will help in the matching stage. Matching of AM radiograph with PM radiograph can be done by using algorithms.
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