The Devil is in Low-Level Features for Cross-Domain Few-Shot Segmentation
Not on the map. Why?
Abstract (arXiv)
Cross-Domain Few-Shot Segmentation (CDFSS) is proposed to transfer the pixel-level segmentation capabilities learned from large-scale source-domain datasets to downstream target-domain datasets, with only a few annotated images per class. In this paper, we focus on a well-observed but unresolved phenomenon in CDFSS: for target domains, particularly those distant from the source domain, segmentation performance peaks at the very early epochs, and declines sharply as the source-domain training proceeds. We delve into this phenomenon for an interpretation: low-level features are vulnerable to domain shifts, leading to sharper loss landscapes during the source-domain training, which is the devil of CDFSS. Based on this phenomenon and interpretation, we further propose a method that includes two plug-and-play modules: one to flatten the loss landscapes for low-level features during source-domain training as a novel sharpness-aware minimization method, and the other to directly supplement target-domain information to the model during target-domain testing by low-level-based calibration. Extensive experiments on four target datasets validate our rationale and demonstrate that our method surpasses the state-of-the-art method in CDFSS signifcantly by 3.71% and 5.34% average MIoU in 1-shot and 5-shot scenarios, respectively.
Key facts. Cited by 8 papers in the map (data through 14 Oct 2026). Builds on 37 of its 49 references that are in the map. First posted on arXiv 27 Mar 2025.
Builds on
37 of 49 references.
References · 37
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25 more
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Built on by
Citing papers per year: 2025: 2; 2026: 6.
8 papers.
- 2026Unify the Views: View-Consistent Prototype Learning for Few-Shot Segmentationcited by 1
- 2026Training-free Cross-domain Few-shot Segmentation via Robust Semantic Representation and Matchingcited by 1
- 2025Inter- and Intra-image Refinement for Few Shot Segmentationcited by 0
- 2025Cross-Domain Few-Shot Segmentation via Ordinary Differential Equations over Time Intervalscited by 0
- 2026Selective, Regularized, and Calibrated: Harnessing Vision Foundation Models for Cross-Domain Few-Shot Semantic Segmentationcited by 0
- 2026Hierarchical Spatial and Channel Aggregation for Cross-domain Few-shot Segmentationcited by 0
- 2026Free-Lunch Augmentation by Revisiting Diffusion-Based Data Generation for Cross-Domain Few-Shot Object Detectioncited by 0
- 2026The First EgoCross Challenge at EgoVis 2026: Cross-Domain Egocentric Video Question Answeringcited by 0
- 2026The First EgoCross Challenge at EgoVis 2026: Cross-Domain Egocentric Video Question Answering5 Aug 2026
- 2026Free-Lunch Augmentation by Revisiting Diffusion-Based Data Generation for Cross-Domain Few-Shot Object Detection5 Aug 2026
- 2026Training-free Cross-domain Few-shot Segmentation via Robust Semantic Representation and Matching23 Jun 2026
- 2026Hierarchical Spatial and Channel Aggregation for Cross-domain Few-shot Segmentation23 Jun 2026
- 2026Selective, Regularized, and Calibrated: Harnessing Vision Foundation Models for Cross-Domain Few-Shot Semantic Segmentation19 May 2026
- 2026Unify the Views: View-Consistent Prototype Learning for Few-Shot Segmentation6 Mar 2026
- 2025Cross-Domain Few-Shot Segmentation via Ordinary Differential Equations over Time Intervals1 Sep 2025
- 2025Inter- and Intra-image Refinement for Few Shot Segmentation8 Jul 2025