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Updated: Jun 26, 2026

Morphometric Analyses of Retinal Sections

Morphometric Analyses of Retinal Sections

Published on: February 19, 2012

GrinLine identification using digital imaging and Adobe Photoshop.

Susan A Bollinger¹, Paula C Brumit, Bruce A Schrader

¹Center for Education and Research in Forensics, The University of Texas Health Science Center at San Antonio, Mail Code 7919, 7703 Floyd Curl Drive, San Antonio, TX 78229-3900, USA. bayshoredent@earthlink.net

Journal of Forensic Sciences

|February 4, 2009

Summary

This summary is machine-generated.

This study introduces the GrinLine Identification Technique for comparing antemortem and postmortem photographs. This method aids in victim identification by analyzing dental features visible in a smile.

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Area of Science:

Forensic Science
Odontology
Digital Imaging

Background:

Accurate victim identification is crucial in forensic investigations.
Traditional methods may require extensive dental records, which are not always available.
A need exists for novel techniques to compare antemortem and postmortem images efficiently.

Purpose of the Study:

To develop and outline a method for comparing antemortem and postmortem photographs to aid in victim identification.
To establish a technique for critical analysis of dental features in facial images.

Main Methods:

Ten subjects provided historical photographs (antemortem) showing a grin.
Current photographs (postmortem) of the subjects' grins were taken.
Digital images were analyzed using Adobe Photoshop for comparative analysis.
The GrinLine Identification Technique involves creating digital overlays of antemortem teeth for comparison with postmortem images.

Main Results:

A technique was devised to facilitate the determination of the "unknown" victim from a set of antemortem subjects.
The method focuses on the comparison of dental features visible in a grin.
Digital overlays of teeth were generated for comparative analysis.

Conclusions:

The GrinLine Identification Technique provides a method for comparing antemortem and postmortem dental images.
This technique may assist medical examiners and coroners in identification and exclusion processes.
Facial identification can be enhanced through the analysis of dental characteristics in photographic comparisons.