Dwarikanath Mahapatra — Papers on Cortexa

arxivcs.CV2026-07-19

Induce to Empower: Improving Lightweight Baselines via Foundation Model Induction for Generalized Polyp Segmentation

Shivanshu Agnihotri, Snehashis Majhi, Deepak Ranjan Nayak, Dwarikanath Mahapatra, Debesh Jha

Automated polyp segmentation in colonoscopy continues to pose challenges due to substantial appearance variations and indistinct polyp boundaries. Although emerging foundation models (FMs) such as DINOv2, SAM, and OneFormer, demonstrate remarkable generalization capabilities, the…

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arxivcs.CV2026-07-18

Can Experts Adapt Without Training? On Test-Time Modality Generalization in MVLMs

Raza Imam, Darakshan Rashid, Yutong Xie, Dwarikanath Mahapatra, Brejesh Lall, Mohammad Yaqub

Medical vision-language models (MVLMs) promise broad zero-shot generalization, yet their reliability collapses when confronted with unseen modalities and domains, precisely where clinical robustness matters most. To address this gap, we revisit test-time modality generalization f…

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