Advances in Touchless Fingerprint Recognition Technology

Friday 21 March 2025


For years, researchers have been working on developing touchless fingerprint recognition technology that can accurately identify individuals without the need for physical contact. This is crucial in various applications such as border control, law enforcement, and national security. Recently, a team of scientists made significant progress in this field by evaluating the impact of image enhancement techniques on transfer learning models.


The researchers used four different deep learning architectures – VGG-16, VGG-19, Inception-V3, and ResNet-50 – to develop their touchless fingerprint recognition system. They created two datasets: one without preprocessing and another with enhanced images. The results were remarkable, showing that preprocessing significantly improves the accuracy of the models.


VGG-16, in particular, achieved an impressive 98% accuracy rate when using preprocessed images, while VGG-19 came close with a 97% accuracy rate. ResNet-50 also showed substantial improvement, increasing its accuracy to 76%. Inception-V3, however, struggled, achieving only 64% accuracy.


The study highlights the importance of image enhancement techniques in improving the performance of deep learning models for touchless fingerprint recognition. By applying various preprocessing steps, such as normalization, contrast adjustment, and sharpening, researchers can enhance key features in fingerprint images, making them more suitable for model training.


The findings have significant implications for the development of secure biometric authentication systems. With the ability to accurately identify individuals without physical contact, touchless fingerprint recognition technology has the potential to revolutionize various industries, from law enforcement to healthcare.


In addition to its practical applications, this research also sheds light on the importance of understanding how different deep learning architectures respond to preprocessing techniques. By analyzing the performance of each model, researchers can better understand how to optimize their systems for specific tasks and improve overall accuracy.


The study’s authors suggest that future research should focus on integrating additional depth features, such as 3D fingerprint capturing and mosaicking, to further enhance system performance. They also propose exploring new biometric traits, such as sweat pore pattern analysis and blood flow detection, to create more robust authentication systems.


Overall, this research demonstrates the significant potential of touchless fingerprint recognition technology in improving security and accuracy in various applications. By continuing to push the boundaries of what is possible with image enhancement techniques and deep learning models, researchers can unlock new possibilities for secure biometric authentication and identity verification.


Cite this article: “Advances in Touchless Fingerprint Recognition Technology”, The Science Archive, 2025.


Touchless Fingerprint Recognition, Deep Learning Models, Image Enhancement Techniques, Transfer Learning, Biometric Authentication, Secure Identity Verification, Border Control, Law Enforcement, National Security, Artificial Intelligence.


Reference: S Sreehari, Dilavar P D, S M Anzar, Alavikunhu Panthakkan, Saad Ali Amin, “Performance Evaluation of Image Enhancement Techniques on Transfer Learning for Touchless Fingerprint Recognition” (2025).


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