CANet: Class-Agnostic Segmentation Networks with Iterative Refinement and Attentive Few-Shot Learning
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Abstract (arXiv)
Recent progress in semantic segmentation is driven by deep Convolutional Neural Networks and large-scale labeled image datasets. However, data labeling for pixel-wise segmentation is tedious and costly. Moreover, a trained model can only make predictions within a set of pre-defined classes. In this paper, we present CANet, a class-agnostic segmentation network that performs few-shot segmentation on new classes with only a few annotated images available. Our network consists of a two-branch dense comparison module which performs multi-level feature comparison between the support image and the query image, and an iterative optimization module which iteratively refines the predicted results. Furthermore, we introduce an attention mechanism to effectively fuse information from multiple support examples under the setting of k-shot learning. Experiments on PASCAL VOC 2012 show that our method achieves a mean Intersection-over-Union score of 55.4% for 1-shot segmentation and 57.1% for 5-shot segmentation, outperforming state-of-the-art methods by a large margin of 14.6% and 13.2%, respectively.
Key facts. Cited by 217 papers in the map (data through 14 Oct 2026). First posted on arXiv 6 Mar 2019.
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Citing papers per year: 2021: 59; 2022: 54; 2023: 47; 2024: 35; 2025: 16; 2026: 6.
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- 2021Image Segmentation Using Text and Image Promptscited by 512
- 2021ReStyle: A Residual-Based StyleGAN Encoder via Iterative Refinementcited by 248
- 2021Adaptive Prototype Learning and Allocation for Few-Shot Segmentationcited by 207
- 2021Hypercorrelation Squeeze for Few-Shot Segmentationcited by 193
- 2021Few-Shot Incremental Learning with Continually Evolved Classifierscited by 187
- 2022A Comprehensive Survey of Few-shot Learning: Evolution, Applications, Challenges, and Opportunitiescited by 163
- 2021Few-Shot Segmentation via Cycle-Consistent Transformercited by 133
- 2022Learning What Not to Segment: A New Perspective on Few-Shot Segmentationcited by 120
- 2021Simpler is Better: Few-shot Semantic Segmentation with Classifier Weight Transformercited by 116
- 2022Cost Aggregation with 4D Convolutional Swin Transformer for Few-Shot Segmentationcited by 114
- 2022Self-Support Few-Shot Semantic Segmentationcited by 96
- 2023Vision-Language Models in Remote Sensing: Current Progress and Future Trendscited by 93
38 more
- 2021Self-Guided and Cross-Guided Learning for Few-Shot Segmentationcited by 92
- 2023UniverSeg: Universal Medical Image Segmentationcited by 91
- 2023Hierarchical Dense Correlation Distillation for Few-Shot Segmentationcited by 84
- 2022FS6D: Few-Shot 6D Pose Estimation of Novel Objectscited by 81
- 2021Mining Latent Classes for Few-shot Segmentationcited by 69
- 2022Dense Cross-Query-and-Support Attention Weighted Mask Aggregation for Few-Shot Segmentationcited by 65
- 2022Few-shot Object Counting with Similarity-Aware Feature Enhancementcited by 62
- 2022Feature-Proxy Transformer for Few-Shot Segmentationcited by 58
- 2022Learning Non-target Knowledge for Few-shot Semantic Segmentationcited by 57
- 2021Learning Meta-class Memory for Few-Shot Semantic Segmentationcited by 56
- 2023FaceStudio: Put Your Face Everywhere in Secondscited by 53
- 2022Hierarchical Normalization for Robust Monocular Depth Estimationcited by 52
- 2022Singular Value Fine-tuning: Few-shot Segmentation requires Few-parameters Fine-tuningcited by 50
- 2023LLaFS: When Large Language Models Meet Few-Shot Segmentationcited by 48
- 2021Prototypical Cross-Attention Networks for Multiple Object Tracking and Segmentationcited by 43
- 2022Dynamic Prototype Convolution Network for Few-Shot Semantic Segmentationcited by 43
- 2022Anomaly Detection-Inspired Few-Shot Medical Image Segmentation Through Self-Supervision With Supervoxelscited by 42
- 2021One-Shot Object Affordance Detection in the Wildcited by 40
- 2022Intermediate Prototype Mining Transformer for Few-Shot Semantic Segmentationcited by 37
- 2021HCRF-Flow: Scene Flow from Point Clouds with Continuous High-order CRFs and Position-aware Flow Embeddingcited by 36
- 2021Few-shot Segmentation with Optimal Transport Matching and Message Flowcited by 36
- 2022Pose for Everything: Towards Category-Agnostic Pose Estimationcited by 36
- 2024Bridge the Points: Graph-based Few-shot Segment Anything Semanticallycited by 35
- 2023Self-Calibrated Cross Attention Network for Few-Shot Segmentationcited by 32
- 2021PFENet++: Boosting Few-shot Semantic Segmentation with the Noise-filtered Context-aware Prior Maskcited by 31
- 2024Cross-Domain Few-Shot Segmentation via Iterative Support-Query Correspondence Miningcited by 30
- 2022Beyond the Prototype: Divide-and-conquer Proxies for Few-shot Segmentationcited by 28
- 2023Prototype Adaption and Projection for Few- and Zero-shot 3D Point Cloud Semantic Segmentationcited by 26
- 2024APSeg: Auto-Prompt Network for Cross-Domain Few-Shot Semantic Segmentationcited by 26
- 2022Integrative Few-Shot Learning for Classification and Segmentationcited by 25
- 2022Interclass Prototype Relation for Few-Shot Segmentationcited by 25
- 2023MIANet: Aggregating Unbiased Instance and General Information for Few-Shot Semantic Segmentationcited by 25
- 2023Neuralizer: General Neuroimage Analysis without Re-Trainingcited by 24
- 2023Distilling Self-Supervised Vision Transformers for Weakly-Supervised Few-Shot Classification & Segmentationcited by 24
- 2021Anti-aliasing Semantic Reconstruction for Few-Shot Semantic Segmentationcited by 23
- 2022Bidirectional Feature Globalization for Few-shot Semantic Segmentation of 3D Point Cloud Scenescited by 23
- 2022A Strong Baseline for Generalized Few-Shot Semantic Segmentationcited by 22
- 2022Mask Matching Transformer for Few-Shot Segmentationcited by 22
50 most cited of 217 All 217 (JSON)
- 2026REBASE: Reference-Background Subspace Elimination for Training-Free In-Context Segmentation10 Jul 2026
- 2026Training-free Cross-domain Few-shot Segmentation via Robust Semantic Representation and Matching23 Jun 2026
- 2026Selective, Regularized, and Calibrated: Harnessing Vision Foundation Models for Cross-Domain Few-Shot Semantic Segmentation19 May 2026
- 2026Make It Up: Fake Images, Real Gains in Generalized Few-shot Semantic Segmentation28 Mar 2026
- 2026CAD-Prompted SAM3: Geometry-Conditioned Instance Segmentation for Industrial Objects24 Feb 2026
- 2026Cross-Domain Few-Shot Segmentation via Multi-view Progressive Adaptation5 Feb 2026
- 2025Beyond Visual Cues: Leveraging General Semantics as Support for Few-Shot Segmentation20 Nov 2025
- 2025Unbiased Semantic Decoding with Vision Foundation Models for Few-shot Segmentation19 Nov 2025
- 2025Bridging Granularity Gaps: Hierarchical Semantic Learning for Cross-domain Few-shot Segmentation15 Nov 2025
- 2025Attention-Enhanced Prototypical Learning for Few-Shot Infrastructure Defect Segmentation6 Oct 2025
- 2025Object-level Correlation for Few-Shot Segmentation9 Sep 2025
- 2025Correspondence as Video: Test-Time Adaption on SAM2 for Reference Segmentation in the Wild11 Aug 2025
38 more
- 2025Probabilistic Prototype Calibration of Vision-Language Models for Generalized Few-shot Semantic Segmentation28 Jun 2025
- 2025Adapter Naturally Serves as Decoupler for Cross-Domain Few-Shot Semantic Segmentation9 Jun 2025
- 2025GMM-Based Comprehensive Feature Extraction and Relative Distance Preservation For Few-Shot Cross-Modal Retrieval19 May 2025
- 2025ProMi: An Efficient Prototype-Mixture Baseline for Few-Shot Segmentation with Bounding-Box Annotations18 May 2025
- 2025Adapting In-Domain Few-Shot Segmentation to New Domains without Source Domain Retraining30 Apr 2025
- 2025A BERT-Style Self-Supervised Learning CNN for Disease Identification from Retinal Images25 Apr 2025
- 2025FSSUWNet: Mitigating the Fragility of Pre-trained Models with Feature Enhancement for Few-Shot Semantic Segmentation in Underwater Images1 Apr 2025
- 2025DSV-LFS: Unifying LLM-Driven Semantic Cues with Visual Features for Robust Few-Shot Segmentation6 Mar 2025
- 2025SAMRefiner: Taming Segment Anything Model for Universal Mask Refinement10 Feb 2025
- 2025Static Segmentation by Tracking: A Label-Efficient Approach for Fine-Grained Specimen Image Segmentation12 Jan 2025
- 2024AFANet: Adaptive Frequency-Aware Network for Weakly-Supervised Few-Shot Semantic Segmentation23 Dec 2024
- 2024FCC: Fully Connected Correlation for One-Shot Segmentation18 Nov 2024
- 2024Lightweight Frequency Masker for Cross-Domain Few-Shot Semantic Segmentation29 Oct 2024
- 2024Upsampling DINOv2 features for unsupervised vision tasks and weakly supervised materials segmentation20 Oct 2024
- 2024Bridge the Points: Graph-based Few-shot Segment Anything Semantically9 Oct 2024
- 2024Hybrid Mamba for Few-Shot Segmentation29 Sep 2024
- 2024AgMTR: Agent Mining Transformer for Few-shot Segmentation in Remote Sensing26 Sep 2024
- 2024TAVP: Task-Adaptive Visual Prompt for Cross-domain Few-shot Segmentation9 Sep 2024
- 2024Few-Shot 3D Volumetric Segmentation with Multi-Surrogate Fusion26 Aug 2024
- 2024Small Object Few-shot Segmentation for Vision-based Industrial Inspection31 Jul 2024
- 2024Deep ContourFlow: Advancing Active Contours with Deep Learning15 Jul 2024
- 2024Eliminating Feature Ambiguity for Few-Shot Segmentation13 Jul 2024
- 2024Judging from Support-set: A New Way to Utilize Few-Shot Segmentation for Segmentation Refinement Process5 Jul 2024
- 2024Label Anything: Multi-Class Few-Shot Semantic Segmentation with Visual Prompts2 Jul 2024
- 2024Investigating Self-Supervised Methods for Label-Efficient Learning25 Jun 2024
- 2024APSeg: Auto-Prompt Network for Cross-Domain Few-Shot Semantic Segmentation12 Jun 2024
- 2024Learning Robust Correlation with Foundation Model for Weakly-Supervised Few-Shot Segmentation30 May 2024
- 2024Organizing Background to Explore Latent Classes for Incremental Few-shot Semantic Segmentation29 May 2024
- 2024Cross-Domain Few-Shot Semantic Segmentation via Doubly Matching Transformation24 May 2024
- 2024Embedding Generalized Semantic Knowledge into Few-Shot Remote Sensing Segmentation22 May 2024
- 2024NubbleDrop: A Simple Way to Improve Matching Strategy for Prompted One-Shot Segmentation19 May 2024
- 2024Visual Prompting for Generalized Few-shot Segmentation: A Multi-scale Approach17 Apr 2024
- 2024Domain-Rectifying Adapter for Cross-Domain Few-Shot Segmentation16 Apr 2024
- 2024Learning to Visually Localize Sound Sources from Mixtures without Prior Source Knowledge26 Mar 2024
- 2024IFSENet : Harnessing Sparse Iterations for Interactive Few-shot Segmentation Excellence22 Mar 2024
- 2024Meta-Point Learning and Refining for Category-Agnostic Pose Estimation20 Mar 2024
- 2024LERENet: Eliminating Intra-class Differences for Metal Surface Defect Few-shot Semantic Segmentation17 Mar 2024
- 2024Query-guided Prototype Evolution Network for Few-Shot Segmentation11 Mar 2024
50 newest of 217 All 217 (JSON)
- 2023DifFSS: Diffusion Model for Few-Shot Semantic Segmentationcited by 22
- 2024Hybrid Mamba for Few-Shot Segmentationcited by 21
- 2024Hybrid Mamba for Few-Shot Segmentation29 Sep 2024
- 2021Image Segmentation Using Text and Image Promptscited by 512
- 2021ReStyle: A Residual-Based StyleGAN Encoder via Iterative Refinementcited by 248
- 2021Adaptive Prototype Learning and Allocation for Few-Shot Segmentationcited by 207
- 2021Hypercorrelation Squeeze for Few-Shot Segmentationcited by 193
- 2021Few-Shot Incremental Learning with Continually Evolved Classifierscited by 187
- 2022A Comprehensive Survey of Few-shot Learning: Evolution, Applications, Challenges, and Opportunitiescited by 163
- 2021Few-Shot Segmentation via Cycle-Consistent Transformercited by 133
- 2022Learning What Not to Segment: A New Perspective on Few-Shot Segmentationcited by 120
- 2021Simpler is Better: Few-shot Semantic Segmentation with Classifier Weight Transformercited by 116
- 2022Cost Aggregation with 4D Convolutional Swin Transformer for Few-Shot Segmentationcited by 114
- 2022Self-Support Few-Shot Semantic Segmentationcited by 96
- 2021Self-Guided and Cross-Guided Learning for Few-Shot Segmentationcited by 92
12 most cited of 212 All 212 (JSON)
- 2026REBASE: Reference-Background Subspace Elimination for Training-Free In-Context Segmentation10 Jul 2026
- 2026Training-free Cross-domain Few-shot Segmentation via Robust Semantic Representation and Matching23 Jun 2026
- 2026Selective, Regularized, and Calibrated: Harnessing Vision Foundation Models for Cross-Domain Few-Shot Semantic Segmentation19 May 2026
- 2026Make It Up: Fake Images, Real Gains in Generalized Few-shot Semantic Segmentation28 Mar 2026
- 2026CAD-Prompted SAM3: Geometry-Conditioned Instance Segmentation for Industrial Objects24 Feb 2026
- 2026Cross-Domain Few-Shot Segmentation via Multi-view Progressive Adaptation5 Feb 2026
- 2025Beyond Visual Cues: Leveraging General Semantics as Support for Few-Shot Segmentation20 Nov 2025
- 2025Unbiased Semantic Decoding with Vision Foundation Models for Few-shot Segmentation19 Nov 2025
- 2025Bridging Granularity Gaps: Hierarchical Semantic Learning for Cross-domain Few-shot Segmentation15 Nov 2025
- 2025Attention-Enhanced Prototypical Learning for Few-Shot Infrastructure Defect Segmentation6 Oct 2025
- 2025Object-level Correlation for Few-Shot Segmentation9 Sep 2025
- 2025Correspondence as Video: Test-Time Adaption on SAM2 for Reference Segmentation in the Wild11 Aug 2025
12 newest of 212 All 212 (JSON)