A weld seam recognition and positioning method and system based on YOLOv11

By improving the YOLOv11 network architecture and adopting Starnet and FreqFusion modules, efficient and accurate weld seam identification and positioning are achieved, solving the identification problem on resource-constrained devices and improving multi-task synchronous prediction capabilities.

CN122415422APending Publication Date: 2026-07-17HEBEI UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HEBEI UNIVERSITY
Filing Date
2026-03-03
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing weld seam recognition technologies are difficult to deploy efficiently on resource-constrained edge devices. Furthermore, traditional methods are sensitive to imaging noise, resulting in decreased recognition accuracy and insufficient generalization ability, making them difficult to adapt to various types of weld seams and complex working conditions.

Method used

Based on the YOLOv11-pose network architecture, the backbone network is replaced with the Starnet structure, and the FreqFusion feature fusion module is introduced into the neck network. Combined with the key point prediction branch and depthwise separable convolution, multi-task synchronous prediction is achieved.

Benefits of technology

While reducing computational complexity and the number of parameters, it improves the accuracy and efficiency of weld seam identification and positioning, making it suitable for deployment on edge devices with limited computing resources.

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Abstract

本发明公开了一种基于YOLOv11的焊缝识别及定位方法和系统,该方法包括如下步骤:采集不同焊缝类型下的线激光特征图像数据集,对线激光特征图像数据集进行数据增强处理并对增强后的数据进行标注,根据预设比例划分标注好的数据集为训练集和验证集;搭建改进YOLOv11网络模型架构,其具体包括:采用Starnet网络结构替代YOLOv11‑pose网络模型架构的主干网络,并在YOLOv11‑pose网络模型架构的颈部网络中引入FreqFusion特征融合模块;通过训练集对改进YOLOv11网络模型架构进行训练,待训练完成后使用验证集对每个模型架构进行验证并对比各个模型架构的性能指标。
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