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Development of an Intelligent Forensic System for Hair Analysis and Comparison

The Problem: An important forensic task is to analyze and compare hair evidence in criminal cases. A forensic expert compares sets of hair images from a crime scene to a set from a suspect. Under a microscope, hairs are fairly distinctive, as shown in Figure 1. The medulh, which runs along the center of the hair, can take on a variety of different shapes. The cortez material outside the medulla has different textures and colors. The cuticle, which is located on the exterior of the hair, can be either visible or invisible. Forensic analysis is a tedious procedure. The forensic expert must manually compare hundreds of hair samples to determine whether or not two sets of samples came from the same person.