联合结构重参数和RT-DETR的风电叶片表面缺陷检测

白家宇; 沙玲; 雷菊阳; 魏丹

doi:doi:10.19912/j.0254-0096.tynxb.2024-2158

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联合结构重参数和RT-DETR的风电叶片表面缺陷检测

更新时间：2026-07-22

- 联合结构重参数和RT-DETR的风电叶片表面缺陷检测
- Vol. 47, Issue 4, Pages: 297-306(2026)
- 作者机构：
- 作者简介：
- 基金信息：
- DOI：doi:10.19912/j.0254-0096.tynxb.2024-2158
  CLC： TP391
- Online First：08 May 2026，
  
  Published：2026
- 稿件说明：
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白家宇, 沙玲, 雷菊阳, et al. 联合结构重参数和RT-DETR的风电叶片表面缺陷检测[J]. 2026, 47(4): 297-306.
DOI：

白家宇, 沙玲, 雷菊阳, et al. 联合结构重参数和RT-DETR的风电叶片表面缺陷检测[J]. 2026, 47(4): 297-306. DOI： doi:10.19912/j.0254-0096.tynxb.2024-2158.

摘要

针对风电叶片表面缺陷形状不一

传统卷积神经网络涉及阈值筛选和非极大值抑制过程增加计算的复杂性等问题

提出一种基于改进Transformer（RT-DETR）的检测模型RH-DETR。通过对比ResNet18、SwinTransformer和CswinTransformer等主干网络

选取检测精度尚可且计算量较低的ResNet18作为主干特征提取网络;引入改进后的重参数模块（RP-Block）来更新主干网络的中basic-block

在不牺牲检测精度的前提下提高模型的推理速度;考虑到风电叶片表面缺陷形状不规则

使用基于高低频特征分离位置编码（HiLo）结构重构原有的尺度内特征交互模块（AIFI）来解决低层特征的丢失问题

提高模型的特征提取能力。实验结果表明RH-DETR模型取得了96.1%的准确率以及93.1%的平均精度均值

优于目前主流的YOLO检测模型

相较于原始模型RT-DETR

分别提高2.4和1.3个百分点

且模型计算复杂度降低50%以上

检测速度由32.6帧/s提升至64.7帧/s

满足工业实时检测的要求

可为风电叶片的检测维护提供技术支撑。

Abstract

In view of the different shapes of surface defects of wind turbine blades

the traditional convolutional neural network involves threshold screening and non-maximum suppression processes that increase the complexity of calculation

a detection model RH-DETR based on improved Transformer （real-time-detection transformer

RT-DETR） is proposed by comparing backbone networks such as ResNet18

SwinTransformer and CSwinTransformer

ResNet18 with relatively balanced detection accuracy and low computational complexity is selected as the backbone feature extraction network; the improved re-parameter module （RP-Block） is introduced to update the basic-block of the backbone network

while not losing detection accuracy

improving the inference speed of the model; considering the irregular shape of surface defects on wind turbine blades

the HiLo structure is used to reconstruct the original AIFI structure to solve the problem of low-level feature loss and improve the feature extraction ability of the model. The experimental results show that the accuracy and average accuracy of RH-DETR are 96.1% and 93.1% respectively

which are better than the current mainstream YOLO detection model. Compared with the original model RT-DETR

they are improved by 2.4 and 1.3 percentage points

respectively. In addition

the computational complexity of the model is reduced by over 50%. The detection speed is increased from 32.6 f/s to 64.7 f/s

which meets the requirements of industrial real-time detection and provides technical support for the detection and maintenance of wind blade.

关键词

Keywords

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