TL;DR
This paper introduces a novel wrist identification method for forensic investigations, addressing challenges in uncontrolled environments and demonstrating its effectiveness on a large, diverse dataset.
Contribution
The study proposes a comprehensive wrist identification algorithm and evaluates its performance on a new, extensive dataset, highlighting wrist biometrics' potential in forensic applications.
Findings
Wrist biometrics can aid in criminal and victim identification.
The proposed method achieves high accuracy on the NTU-Wrist-Image-Database-v1.
Wrist features are effective even under uneven lighting and different poses.
Abstract
Criminal and victim identification based on crime scene images is an important part of forensic investigation. Criminals usually avoid identification by covering their faces and tattoos in the evidence images, which are taken in uncontrolled environments. Existing identification methods, which make use of biometric traits, such as vein, skin mark, height, skin color, weight, race, etc., are considered for solving this problem. The soft biometric traits, including skin color, gender, height, weight and race, provide useful information but not distinctive enough. Veins and skin marks are limited to high resolution images and some body sites may neither have enough skin marks nor clear veins. Terrorists and rioters tend to expose their wrists in a gesture of triumph, greeting or salute, while paedophiles usually show them when touching victims. However, wrists were neglected by the…
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