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arXiv · 2510.25164

Transformers in Medicine: Improving Vision-Language Alignment for Medical Image Captioning

Yogesh Thakku Suresh·Vishwajeet Shivaji Hogale·Luca-Alexandru Zamfira·Anandavardhana Hegde
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Abstract

We present a transformer-based multimodal framework for generating clinically relevant captions for MRI scans. Our system combines a DEiT-Small vision transformer as an image encoder, MediCareBERT for caption embedding, and a custom LSTM-based decoder. The architecture is designed to semantically align image and textual embeddings, using hybrid cosine-MSE loss and contrastive inference via vector similarity. We benchmark our method on the MultiCaRe dataset, comparing performance on filtered brain-only MRIs versus general MRI images against state-of-the-art medical image captioning methods including BLIP, R2GenGPT, and recent transformer-based approaches. Results show that focusing on domain-specific data improves caption accuracy and semantic alignment. Our work proposes a scalable, interpretable solution for automated medical image reporting.

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Yogesh Thakku Suresh, Vishwajeet Shivaji Hogale, Luca-Alexandru Zamfira, Anandavardhana Hegde. 2025-10-31. Transformers in Medicine: Improving Vision-Language Alignment for Medical Image Captioning. https://arxiv.org/abs/2510.25164

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