MNet-SAt: A Multiscale Network with Spatial-enhanced Attention for Segmentation of Polyps in Colonoscopy
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Abstract (arXiv)
Objective: To develop a novel deep learning framework for the automated segmentation of colonic polyps in colonoscopy images, overcoming the limitations of current approaches in preserving precise polyp boundaries, incorporating multi-scale features, and modeling spatial dependencies that accurately reflect the intricate and diverse morphology of polyps. Methods: To address these limitations, we propose a novel Multiscale Network with Spatial-enhanced Attention (MNet-SAt) for polyp segmentation in colonoscopy images. This framework incorporates four key modules: Edge-Guided Feature Enrichment (EGFE) preserves edge information for improved boundary quality; Multi-Scale Feature Aggregator (MSFA) extracts and aggregates multi-scale features across channel spatial dimensions, focusing on salient regions; Spatial-Enhanced Attention (SEAt) captures spatial-aware global dependencies within the multi-scale aggregated features, emphasizing the region of interest; and Channel-Enhanced Atrous Spatial Pyramid Pooling (CE-ASPP) resamples and recalibrates attentive features across scales. Results: We evaluated MNet-SAt on the Kvasir-SEG and CVC-ClinicDB datasets, achieving Dice Similarity Coefficients of 96.61% and 98.60%, respectively. Conclusion: Both quantitative (DSC) and qualitative assessments highlight MNet-SAt's superior performance and generalization capabilities compared to existing methods. Significance: MNet-SAt's high accuracy in polyp segmentation holds promise for improving clinical workflows in early polyp detection and more effective treatment, contributing to reduced colorectal cancer mortality rates.
Key facts. Cited by 5 papers in the map (data through 14 Oct 2026). Builds on 22 of its 49 references that are in the map. First posted on arXiv 27 Dec 2024.
Builds on
22 of 49 references.
References · 22
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- 2019Kvasir-SEG: A Segmented Polyp Datasetcited by 589
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10 more
- 2022TGANet: Text-guided attention for improved polyp segmentationcited by 59
- 2021MSRF-Net: A Multi-Scale Residual Fusion Network for Biomedical Image Segmentationcited by 53
- 2022FCN-Transformer Feature Fusion for Polyp Segmentationcited by 37
- 2023Using DUCK-Net for Polyp Image Segmentationcited by 31
- 2019Modified U-Net (mU-Net) with Incorporation of Object-Dependent High Level Features for Improved Liver and Liver-Tumor Segmentation in CT Imagescited by 28
- 2019FocusNet: An attention-based Fully Convolutional Network for Medical Image Segmentationcited by 24
- 2024A social context-aware graph-based multimodal attentive learning framework for disaster content classification during emergencies: a benchmark dataset and methodcited by 12
- 2024CoTCoNet: An Optimized Coupled Transformer-Convolutional Network with an Adaptive Graph Reconstruction for Leukemia Detectioncited by 7
- 2024An Explainable Contrastive-based Dilated Convolutional Network with Transformer for Pediatric Pneumonia Detectioncited by 6
- 2023Multi-level feature fusion network combining attention mechanisms for polyp segmentationcited by 2
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