Author

F. Rahman

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Open access Oct 2026

RFM: A Lightweight Retinal Foundation Model for Generalised Oculomics

Foundation models for colour fundus photography (CFP) are candidate visual encoders for multimodal medical AI, but existing models are large and are assessed under fine-tuning rather than the frozen-encoder conditions such systems impose. We present RFM (Retinal Foundation Model), a 64-million-parameter Vision Transfor...

J. Fajtl, R. Welikala, R. Shakespeare et al. · medRxiv · 0 citations

Preprint Sep 2026

Training-Free Spectral Transductive Refinement for Cross-Domain Few-Shot Classification

Few-shot recognition with frozen visual features is especially fragile under domain shift and one-shot supervision, where a single labelled image is an unreliable estimate of its class. We ask how far this fragility can be reduced purely at test time, without retraining the encoder or augmenting the source domain. We p...

F. Rahman, S. Rohan, Mahmound Sayed et al. · 0 citations