G-MSGINet: A Grouped Multi-Scale Graph-Involution Network for Contactless Fingerprint Recognition

• URL: http://arxiv.org/abs/2505.08233v2
• Date: Wed, 14 May 2025 06:16:41 GMT
• Title: G-MSGINet: A Grouped Multi-Scale Graph-Involution Network for Contactless Fingerprint Recognition
• Authors: Santhoshkumar Peddi, Soham Bandyopadhyay, Debasis Samanta,
• Abstract summary: G-MSGINet is a unified framework for robust contactless fingerprint recognition.<n>It jointly performs minutiae localization and identity embedding directly from raw input images.<n>Extensive experiments on three benchmark datasets show G-MSGINet consistently achieves minutiae F1-scores in the range of $0.83pm0.02$ and Rank-1 identification accuracies between 97.0% and 99.1%.
• Score: 20.458766184257147
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: This paper presents G-MSGINet, a unified and efficient framework for robust contactless fingerprint recognition that jointly performs minutiae localization and identity embedding directly from raw input images. Existing approaches rely on multi-branch architectures, orientation labels, or complex preprocessing steps, which limit scalability and generalization across real-world acquisition scenarios. In contrast, the proposed architecture introduces the GMSGI layer, a novel computational module that integrates grouped pixel-level involution, dynamic multi-scale kernel generation, and graph-based relational modelling into a single processing unit. Stacked GMSGI layers progressively refine both local minutiae-sensitive features and global topological representations through end-to-end optimization. The architecture eliminates explicit orientation supervision and adapts graph connectivity directly from learned kernel descriptors, thereby capturing meaningful structural relationships among fingerprint regions without fixed heuristics. Extensive experiments on three benchmark datasets, namely PolyU, CFPose, and Benchmark 2D/3D, demonstrate that G-MSGINet consistently achieves minutiae F1-scores in the range of $0.83\pm0.02$ and Rank-1 identification accuracies between 97.0% and 99.1%, while maintaining an Equal Error Rate (EER) as low as 0.5%. These results correspond to improvements of up to 4.8% in F1-score and 1.4% in Rank-1 accuracy when compared to prior methods, using only 0.38 million parameters and 6.63 giga floating-point operations, which represents up to ten times fewer parameters than competitive baselines. This highlights the scalability and effectiveness of G-MSGINet in real-world contactless biometric recognition scenarios.

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