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MCA-Net: multi-cascade attention network for polyp segmentation
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DOI：10.1007/s11042-023-16805-9.png)
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摘要
En 中文
Accurate polyp segmentation is crucial for diagnosing colorectal cancer, but it remains challenging due to shape, texture, and scale variations, as well as difficulties in determining boundaries. Existing methods incorporating attention mechanisms have improved accuracy but lack effective fusion of different level features. Besides, extracting boundary information from surrounding mucosa and early polyps poses challenges. To tackle these issues, a multi-cascade attention-based network (MCA-Net) is proposed. Three components are introduced, including an axial receptive module (ARM), a multi-cascade feature aggregation module (MFA), and an edge fusion module (EFM). The ARM enhances multi-scale analysis by incorporating receptive fields and axial attention, providing the algorithm with a better knowledge of the features. Along with the integration of multi-cascade supervision, MFA selectively refines the information, effectively fusing relevant cues from different levels, suppressing background noise, and highlighting essential polyp features. The EFM focuses on capturing object boundary details, resulting in well-defined and accurate segmentation. Experiment results on five polyp datasets show that our MCA-Net outperforms state-of-the-art (SOTA) methods. Specifically, our MCA-Net achieves an 8.2% improvement in mean Dice compared to the state-of-the-art on the ETIS dataset.
Keyword:
Polyp segmentation
Edge fusion
Attention mechanism
Multi-cascade supervision
期刊
IF:
3
论文数:
2.0W
被引数:
3.2W
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