融合动态蛇形卷积与Transformer,提升混凝土裂缝分割精度。
DSCformer: A Dual-Branch Network Integrating Enhanced Dynamic Snake Convolution and SegFormer for Crack Segmentation
- 双分支结构结合改进的动态蛇形卷积与Transformer
- 在Crack3238和FIND数据集上分别达到59.22%和87.24%的IoU
- 适合需要高精度裂缝检测的工程安全监测场景
在建筑质量监控中,准确检测和分割混凝土结构中的裂缝对安全与维护至关重要。现有卷积神经网络(CNN)在裂缝分割任务中表现良好,但常受复杂背景干扰,难以完整捕捉细长的管状结构。相比之下,Transformer擅长全局上下文建模,但在细节特征提取上精度不足。本文提出DSCformer,一种融合增强型动态蛇形卷积(DSConv)与Transformer架构的新型混合模型,以解决上述问题。核心贡献包括:通过金字塔核实现自适应偏移计算,并引入双向可学习偏移迭代机制,显著提升模型对复杂裂缝模式的捕捉能力;同时提出加权卷积注意力模块(WCAM),优化通道注意力,实现更精确、自适应的特征聚焦。在Crack3238和FIND数据集上的实验表明,DSCformer分别取得59.22%和87.24%的交并比(IoU),优于当前主流方法。
原文摘要 · Abstract (English)
In construction quality monitoring, accurately detecting and segmenting cracks in concrete structures is paramount for safety and maintenance. Current convolutional neural networks (CNNs) have demonstrated strong performance in crack segmentation tasks, yet they often struggle with complex backgrounds and fail to capture fine-grained tubular structures fully. In contrast, Transformers excel at capturing global context but lack precision in detailed feature extraction. We introduce DSCformer, a novel hybrid model that integrates an enhanced Dynamic Snake Convolution (DSConv) with a Transformer architecture for crack segmentation to address these challenges. Our key contributions include the enhanced DSConv through a pyramid kernel for adaptive offset computation and a simultaneous bi-directional learnable offset iteration, significantly improving the model's performance to capture intricate crack patterns. Additionally, we propose a Weighted Convolutional Attention Module (WCAM), which refines channel attention, allowing for more precise and adaptive feature attention. We evaluate DSCformer on the Crack3238 and FIND datasets, achieving IoUs of 59.22\% and 87.24\%, respectively. The experimental results suggest that our DSCformer outperforms state-of-the-art methods across different datasets.
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