Papers › Cost Aggregation with 4D Convolutional Swin Transformer for Few-Shot Segmentation
Cost Aggregation with 4D Convolutional Swin Transformer for Few-Shot Segmentation
Sunghwan Hong, Seokju Cho, Jisu Nam, Stephen Lin, Seungryong Kim
This paper presents a novel cost aggregation network, called Volumetric Aggregation with Transformers (VAT), for few-shot segmentation. The use of transformers can benefit correlation map aggregation through self-attention over a global receptive field. However, the tokenization of a correlation map for transformer processing can be detrimental, because the discontinuity at token boundaries reduces the local context available near the token edges and decreases inductive bias. To address this problem, we propose a 4D Convolutional Swin Transformer, where a high-dimensional Swin Transformer is preceded by a series of small-kernel convolutions that impart local context to all pixels and introduce convolutional inductive bias. We additionally boost aggregation performance by applying transformers within a pyramidal structure, where aggregation at a coarser level guides aggregation at a finer level. Noise in the transformer output is then filtered in the subsequent decoder with the help of the query's appearance embedding. With this model, a new state-of-the-art is set for all the standard benchmarks in few-shot segmentation. It is shown that VAT attains state-of-the-art performance for semantic correspondence as well, where cost aggregation also plays a central role.
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Code
Syntology Ran 11 of 20 code samples harvested from 1 repository linked to this paper; 9 have no recorded run. Of those that ran: 2 ran · our draft was wrong; 1 ran · fixture could not drive it; 8 ran with no contract checked.
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Code Syntology ran Syntology
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Tasks
Results from the paper archive 2025-07-28
| Task | Dataset | Model | Metric | Value | Rank at snapshot | Leaderboard | Report |
|---|---|---|---|---|---|---|---|
| Few-Shot Semantic Segmentation | COCO-20i (1-shot) | VAT (ResNet-101) | FB-IoU | 68.8 | #58 of 85 | Archive leaderboard | report |
| Few-Shot Semantic Segmentation | COCO-20i (1-shot) | VAT (ResNet-101) | Mean IoU | 41.3 | #58 of 85 | Archive leaderboard | report |
| Few-Shot Semantic Segmentation | COCO-20i (5-shot) | VAT (ResNet-101) | FB-IoU | 72.4 | #51 of 81 | Archive leaderboard | report |
| Few-Shot Semantic Segmentation | COCO-20i (5-shot) | VAT (ResNet-101) | Mean IoU | 47.9 | #51 of 81 | Archive leaderboard | report |
| Few-Shot Semantic Segmentation | FSS-1000 (1-shot) | VAT (ResNet-101) | FB-IoU | 94 | #4 of 24 | Archive leaderboard | report |
| Few-Shot Semantic Segmentation | FSS-1000 (1-shot) | VAT (ResNet-101) | Mean IoU | 90.3 | #4 of 24 | Archive leaderboard | report |
| Few-Shot Semantic Segmentation | FSS-1000 (1-shot) | VAT (ResNet-50) | FB-IoU | 93.8 | #6 of 24 | Archive leaderboard | report |
| Few-Shot Semantic Segmentation | FSS-1000 (1-shot) | VAT (ResNet-50) | Mean IoU | 90.1 | #6 of 24 | Archive leaderboard | report |
| Few-Shot Semantic Segmentation | FSS-1000 (5-shot) | VAT (ResNet-101) | FB-IoU | 94.4 | #3 of 22 | Archive leaderboard | report |
| Few-Shot Semantic Segmentation | FSS-1000 (5-shot) | VAT (ResNet-101) | Mean IoU | 90.8 | #3 of 22 | Archive leaderboard | report |
| Few-Shot Semantic Segmentation | FSS-1000 (5-shot) | VAT (ResNet-50) | FB-IoU | 94.2 | #4 of 22 | Archive leaderboard | report |
| Few-Shot Semantic Segmentation | FSS-1000 (5-shot) | VAT (ResNet-50) | Mean IoU | 90.7 | #4 of 22 | Archive leaderboard | report |
| Few-Shot Semantic Segmentation | PASCAL-5i (1-Shot) | VAT (ResNet-101) | FB-IoU | 79.6 | #21 of 105 | Archive leaderboard | report |
| Few-Shot Semantic Segmentation | PASCAL-5i (1-Shot) | VAT (ResNet-101) | Mean IoU | 67.9 | #21 of 105 | Archive leaderboard | report |
| Few-Shot Semantic Segmentation | PASCAL-5i (1-Shot) | VAT (ResNet-50) | FB-IoU | 77.8 | #48 of 105 | Archive leaderboard | report |
| Few-Shot Semantic Segmentation | PASCAL-5i (1-Shot) | VAT (ResNet-50) | Mean IoU | 65.5 | #48 of 105 | Archive leaderboard | report |
| Few-Shot Semantic Segmentation | PASCAL-5i (5-Shot) | VAT (ResNet-101) | FB-IoU | 83.2 | #19 of 96 | Archive leaderboard | report |
| Few-Shot Semantic Segmentation | PASCAL-5i (5-Shot) | VAT (ResNet-101) | Mean IoU | 72 | #19 of 96 | Archive leaderboard | report |
| Few-Shot Semantic Segmentation | PASCAL-5i (5-Shot) | VAT (ResNet-50) | FB-IoU | 80.9 | #41 of 96 | Archive leaderboard | report |
| Few-Shot Semantic Segmentation | PASCAL-5i (5-Shot) | VAT (ResNet-50) | Mean IoU | 70.1 | #41 of 96 | Archive leaderboard | report |
| Semantic correspondence | PF-PASCAL | VAT (ECCV) | PCK | 92.3 | #8 of 15 | Archive leaderboard | report |
| Semantic correspondence | PF-WILLOW | VAT (ECCV) | PCK | 81.6 | #2 of 8 | Archive leaderboard | report |
| Semantic correspondence | SPair-71k | VAT (ECCV) | PCK | 55.5 | #12 of 22 | Archive leaderboard | report |
Ranks are positions in the archive's leaderboards as they stood at the 2025-07-28 snapshot. Results published since then are not among these rows, so a rank here is not a current standing.
Methods
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