Cited by 21Domain Adaptation and Few-Shot LearningMedical Image Segmentation TechniquesAdvanced Neural Network Applications

Retrieval-Augmented Few-Shot Medical Image Segmentation With Foundation Models

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Zhao, Lin, Chen, Xiao, Chen, Eric Z., Liu, Yikang, Chen, Terrence, Sun, Shanhui·2025·IEEE Transactions on Neural Networks and Learning Systems

Abstract

Medical image segmentation is crucial for clinical decision-making, but the scarcity of annotated data presents significant challenges. Few-shot segmentation (FSS) methods show promise but often require training on the target domain and struggle to generalize across different modalities. Similarly, adapting foundation models such as the segment anything model (SAM) for medical imaging has limitations, including the need for fine-tuning and domain-specific adaptation. To address these issues, we propose a novel method that adapts DINOv2 and SAM 2 for retrieval-augmented few-shot medical image segmentation. Our approach uses DINOv2's feature as query to retrieve similar samples from limited annotated data, which are then encoded as memories and stored in memory bank. With the memory attention mechanism of SAM 2, the model leverages these memories as conditions to generate accurate segmentation of the target image. We evaluated our framework on three medical image segmentation tasks, demonstrating superior performance and generalizability across various modalities without the need for any retraining or fine-tuning. Overall, this method offers a practical and effective solution for few-shot medical image segmentation and holds significant potential as a valuable annotation tool in clinical applications.

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  • A similar retrieval-augmented approach for few-shot medical image segmentation has been explored in [56], demonstrating its effectiveness in similar scenarios.

    “In fact, a similar retrievalaugmented approach for few-shot medical image segmentation has been explored in [56], demonstrating its effectiveness in similar scenarios.”

    From ConfIC-RCA: Statistically Grounded Efficient Estimation of Segmentation Quality (2025) · cites this paper as [56]

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  1. P. Lewis, E. Perez, A. Piktus, F. Petroni, V. Karpukhin, N. Goyal, H. Küttler, M. Lewis, W.-t. Yih, T. Rocktäschel et al., "Retrieval- augmented generation for knowledge-intensive nlp tasks," Advances in Neural Information Processing Systems, vol. 33, pp. 9459-9474, 2020.
  2. A. Radford, J. W. Kim, C. Hallacy, A. Ramesh, G. Goh, S. Agarwal, G. Sastry, A. Askell, P. Mishkin, J. Clark et al., "Learning transferable visual models from natural language supervision," in International conference on machine learning. PMLR, 2021, pp. 8748-8763.
  3. C. Ryali, Y.-T. Hu, D. Bolya, C. Wei, H. Fan, P.-Y. Huang, V. Aggarwal, A. Chowdhury, O. Poursaeed, J. Hoffman et al., "Hiera: A hierarchi- cal vision transformer without the bells-and-whistles," in International Conference on Machine Learning. PMLR, 2023, pp. 29 441-29 454.

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Authors
Zhao, L., Chen, X., Chen, E. Z., Liu, Y., Chen, T., & Sun, S.
Affiliations
United Imaging Intelligence, Boston, MA, USA
Venue
IEEE Transactions on Neural Networks and Learning Systems
Published
2025-10
Volume
36
Issue
10
Pages
17693-17701
ISSN
  • 2162-237X (ISSN-L)
  • 2162-2388
OpenAlex
W4410986053
Cited by
19
References
26
Citations by year
2026: 12 · 2025: 7
FWCI
7.69
Type
journal article
Language
en
Open access
Locations
  • IEEE Transactions on Neural Networks and Learning Systems (publishedVersion)
  • PubMed (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • arXiv (Cornell University)
Topics
  • Physical Sciences › Computer Science › Artificial Intelligence › Domain Adaptation and Few-Shot Learning
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Medical Image Segmentation Techniques
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Advanced Neural Network Applications
Keywords
retrieval-augmented learning, foundation models, Segment Anything Model, DINOv2, memory bank, cross-modal generalization, annotation tools, limited labeled data
MeSH terms
Algorithms, Diagnostic Imaging, Humans, Image Processing, Computer-Assisted, Databases, Factual, Information Storage and Retrieval, Neural Networks, Computer

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