WMKA-Net: A Weighted Multi-Kernel Attention NetworkMethod for Retinal Vessel Segmentation
We propose a novel retinal vessel segmentation network, the Weighted Multi-Kernel Attention Network (WMKA-Net), which aims to address the issues of insufficient multiscale feature capture, loss of contextual information, and noise sensitivity in retinal vessel segmentation. WMKA-Net significantly improves the segmentation performance of small vessels and low-contrast regions by integrating several innovative components, including the MultiKernelFeature Fusion Module (MKDC), the Progressive Feature Weighting Fusion Strategy (UDFF), and the Attention Mechanism Module (AttentionBlock). The MKDC module employs multiscale parallel convolutional kernels to extract vessel characteristics, thereby enhancing the ability to capture complex vascular structures. The UDFF strategy optimizes the transmission of feature information by weighted fusion of high- and low-level features. The AttentionBlock highlights key regions and suppresses noise interference through the attention mechanism. Experimental results demonstrate that WMKA-Net achieves excellent segmentation performance in multiple public datasets, particularly in segmentation of small vessels and processing of pathological regions. This work provides a robust and efficient new method for segmentation of the retinal vessel.
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