arXiv:2603.27325cs.CVcs.AI2026-03

用YOLOv11同时精准分割伤口边界并分类五类伤口,提升临床实用价值。

Improving Automated Wound Assessment Using Joint Boundary Segmentation and Multi-Class Classification Models

  • 采用YOLOv11架构联合建模,同步完成边界分割与多类分类。
  • 在2963张标注图像上训练,增广后对烧伤等细微病例识别率显著提升。
  • 轻量版模型适合资源受限场景,实现实时伤口分析。

准确的伤口分类与边界分割对急慢性伤口管理的临床决策至关重要。然而现有AI模型多局限于少数伤口类型或仅执行单一任务(分割或分类),限制了临床应用。本研究提出基于YOLOv11的深度学习模型,同时实现五类临床相关伤口(烧伤、压疮、糖尿病足溃疡、血管性溃疡、手术切口)的边界分割(WBS)与分类(WC)。构建包含2,963张标注图像的均衡数据集,并采用分层五折交叉验证确保评估稳健无偏。原始非增强数据集训练模型表现稳定,但烧伤检测精度相对较低。因此引入旋转、翻转及亮度、饱和度、曝光变化的数据增强策略,帮助模型学习更泛化的不变特征,显著提升对视觉细微烧伤病例的识别能力。在对比模型中,YOLOv11x取得最高性能,F1分数达0.9341(WBS)和0.8736(WC);而轻量版YOLOv11n在计算成本更低的前提下仍保持相近准确率,适用于资源受限部署。混淆矩阵与可视化检测结果证实模型具备强鲁棒性,能应对复杂背景与高类内变异性,展现出其在临床与远程护理场景中进行精准、实时伤口分析的巨大潜力。

原文摘要 · Abstract (English)

Accurate wound classification and boundary segmentation are essential for guiding clinical decisions in both chronic and acute wound management. However, most existing AI models are limited, focusing on a narrow set of wound types or performing only a single task (segmentation or classification), which reduces their clinical applicability. This study presents a deep learning model based on YOLOv11 that simultaneously performs wound boundary segmentation (WBS) and wound classification (WC) across five clinically relevant wound types: burn injury (BI), pressure injury (PI), diabetic foot ulcer (DFU), vascular ulcer (VU), and surgical wound (SW). A wound-type balanced dataset of 2,963 annotated images was created to train the models for both tasks, with stratified five-fold cross-validation ensuring robust and unbiased evaluation. The models trained on the original non-augmented dataset achieved consistent performance across folds, though BI detection accuracy was relatively lower. Therefore, the dataset was augmented using rotation, flipping, and variations in brightness, saturation, and exposure to help the model learn more generalized and invariant features. This augmentation significantly improved model performance, particularly in detecting visually subtle BI cases. Among tested variants, YOLOv11x achieved the highest performance with F1-scores of 0.9341 (WBS) and 0.8736 (WC), while the lightweight YOLOv11n provided comparable accuracy at lower computational cost, making it suitable for resource-constrained deployments. Supported by confusion matrices and visual detection outputs, the results confirm the model's robustness against complex backgrounds and high intra-class variability, demonstrating the potential of YOLOv11-based architectures for accurate, real-time wound analysis in both clinical and remote care settings.

伤口分析多任务学习YOLOv11医疗影像

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