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Test-time adaptation with salip: A cascade of sam and clip for zero-shot medical image segmentation

Aleem, Sidra, Wang, Fangyijie, Maniparambil, Mayug orcid logoORCID: 0000-0002-9976-1920, Arazo, Eric, Dietlmeier, Julia orcid logoORCID: 0000-0001-9980-0910, Curran, Kathleen M. orcid logoORCID: 0000-0003-0095-9337, O'Connor, Noel E. orcid logoORCID: 0000-0002-4033-9135 and Little, Suzanne orcid logoORCID: 0000-0003-3281-3471 (2024) Test-time adaptation with salip: A cascade of sam and clip for zero-shot medical image segmentation. In: Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition.

Abstract
The Segment Anything Model (SAM) and CLIP are remarkable vision foundation models (VFMs). SAM, a prompt-driven segmentation model, excels in segmentation tasks across diverse domains, while CLIP is renowned for its zero-shot recognition capabilities. However, their unified potential has not yet been explored in medical image segmentation. To adapt SAM, to medical imaging, existing methods primarily rely on tuning strategies that require extensive data or prior prompts tailored to the specific task, making it particularly challenging when only a limited number of data samples are available. This work presents an in-depth exploration of integrating SAM and CLIP into a unified framework for medical image segmentation. Specifically, we propose a simple unified framework, SaLIP, for organ segmentation. Initially, SAM is used for part-based segmentation within the image, followed by CLIP to retrieve the mask corresponding to the region of interest (ROI) from the pool of SAM’s generated masks. Finally, SAM is prompted by the retrieved ROI to segment a specific organ. Thus, SaLIP is training/fine-tuning free and does not rely on domain expertise or labeled data for prompt engineering. Our method shows substantial enhancements in zero-shot segmentation, showcasing notable improvements in DICE scores across diverse segmentation tasks like brain (63.46%), lung (50.11%), and fetal head (30.82%), when compared to un-prompted SAM
Metadata
Item Type:Conference or Workshop Item (Paper)
Event Type:Workshop
Refereed:Yes
Subjects:Computer Science > Artificial intelligence
Computer Science > Image processing
DCU Faculties and Centres:DCU Faculties and Schools > Faculty of Engineering and Computing > School of Computing
DCU Faculties and Schools > Faculty of Engineering and Computing > School of Electronic Engineering
Publisher:CVPRW
Official URL:https://github.com/aleemsidra/SaLIP
Copyright Information:Authors
Funders:Research Ireland Centre for Reseach Training in Machine Learning (ML-Labs)
ID Code:33153
Deposited On:10 Aug 2026 10:25 by Suzanne Little . Last Modified 10 Aug 2026 10:25
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