UBSegNet: Unified Biometric Region of Interest Segmentation Network

TL;DR

UBSegNet is a novel end-to-end neural network that simultaneously segments five different biometric traits, enhancing multi-modal biometric authentication systems with high accuracy across large publicly available datasets.

Contribution

The paper introduces the first unified architecture for segmenting multiple biometric traits using a region-based CNN, combining trait classification and localization in a single model.

Findings

Achieved high segmentation accuracy on large datasets for five biometric traits.

Demonstrated the effectiveness of a unified model across diverse biometric modalities.

Opened new avenues for multi-trait biometric authentication systems.

Abstract

Digital human identity management, can now be seen as a social necessity, as it is essentially required in almost every public sector such as, financial inclusions, security, banking, social networking e.t.c. Hence, in today's rampantly emerging world with so many adversarial entities, relying on a single biometric trait is being too optimistic. In this paper, we have proposed a novel end-to-end, Unified Biometric ROI Segmentation Network (UBSegNet), for extracting region of interest from five different biometric traits viz. face, iris, palm, knuckle and 4-slap fingerprint. The architecture of the proposed UBSegNet consists of two stages: (i) Trait classification and (ii) Trait localization. For these stages, we have used a state of the art region based convolutional neural network (RCNN), comprising of three major parts namely convolutional layers, region proposal network (RPN) along with classification and regression heads. The model has been evaluated over various huge publicly available biometric databases. To the best of our knowledge this is the first unified architecture proposed, segmenting multiple biometric traits. It has been tested over around 5000 * 5 = 25,000 images (5000 images per trait) and produces very good results. Our work on unified biometric segmentation, opens up the vast opportunities in the field of multiple biometric traits based authentication systems.