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Abstract

Fingerprints are widely used as biometric parameters for identification purposes because of their uniqueness. Moreover, many digital devices have employed fingerprints for security purposes throughout the world. An automatic artificial intelligence-based classification system can reduce the time spent running through the database for fingerprint matching by arranging fingerprints into disjoint classes. It can also help classify fingerprints at the crime scene easily and quickly. The present study proposed a convolutional neural network (CNN) model for the multiclass classification of fingerprint patterns (Arches, Loops, Whorls, and Composites) according to Henry's classification. The model was trained on 2000 fingerprint patterns collected from the fingers of 200 participants. The dataset was split into train, test, and validation part with the ratio of 8:1:1, respectively. The presented CNN model was evaluated by using a confusion matrix for the testing process. Training, validating, and testing the accuracy of the CNN model for classifying fingerprint datasets into four main classes were 89%, 84%, and 85.5%, respectively. This model shows its application as an aiding tool for fingerprint analysis in crime scene investigation, forensic examinations, and fingerprint research.

Keywords

Forensic science fingerprint classification artificial intelligence convolutional neural network forensic case-work and research crime scene investigation

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