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Case studyB.Tech Thesis · IIIT SriCity

FedFV-CV

Federated Deep Learning for Biometric Auth

1.21%
Equal Error Rate
122.6K
images · 5 clients
> FedAvg
on EER benchmark

The problem

Finger-vein biometrics are sensitive — centralising raw vein images to train a model is a privacy risk. The goal: train an accurate authenticator without the raw data ever leaving each client.

Approach

01

Privacy-preserving federated training

MobileNetV2 trained across 5 clients over 122,600 images. Only model updates are shared; raw vein images never leave the device.

02

Custom FedWPR aggregation

A weighted-performance aggregation scheme that outperformed the FedAvg baseline on non-IID client splits, where naive averaging degrades.

Stack

PyTorchMobileNetV2Federated Learning
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