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基于可改变核卷积的不规则织物疵点识别算法研究OA

Research on identification algorithm of irregular fabric defects based on variable kernel convolution

中文摘要英文摘要

针对纺织工业生产中织物疵点形状多变、目标范围较小等问题,提出了一种改进YOLOv7特征提取网络,引入可改变核卷积的不规则织物疵点识别算法.在YOLOv7特征网络中引入可改变核卷积替换传统卷积块,利用可改变核卷积的任意采样形状和任意参数量特性来提高疵点的特征信息采集效率,在采样时可以更加适应不规则的疵点形状和尺寸特征;同时嵌入高效多尺度注意力,利用跨维度的交互来捕捉像素级别的关系,提高模型处理微小特征的能力.通过实验验证:改进后的模型各类别样本的检测精确率P达到95.1%,相比YOLOv7基线模型提升了7.3个百分点,召回率R提升了7.2个百分点,mAP@0.5提高了12.3个百分点;检测精度与检测速度均大幅提升.改进后的模型对不规则织物疵点和疵点范围较小的目标识别检测效率更高,可为工业场景下织物疵点的高效快速识别提供技术支持.

An improved YOLOv7 feature extraction network was proposed to solve the problems of fabric defects in textile industry,such as variable shapes and small target ranges.The variable nuclear convolution is introduced into the YOLOv7 feature network to replace the traditional convolution block,and the arbitrary sampling shape and arbitrary parameter number characteristics of the variable nuclear convolution are used to improve the efficiency of collecting defect feature information,which can better adapt to irregular defect shape and size characteristics during sampling.At the same time,efficient multi-scale attention is embedded,and interdimensional interactions are used to capture pixel-level relationships and improve the ability of the model to process tiny features.Through experimental verification,the detection accuracy rate P of various samples of the improved model reaches 95.1%,which is 7.3%higher than that of YOLOv7 baseline model,the recall rate R is 7.2%higher,and mAP@0.5 is 12.3%higher.The detection accuracy and detection speed are greatly improved.The improved model is more efficient to identify irregular fabric defects and objects with smaller defect range,and can provide technical support to efficient and rapid identification of fabric defects in industrial scenes.

陈军;孙丽丽;李文雪;孟洪兵;杨安迪

塔里木大学 信息工程学院,新疆阿拉尔 843300

计算机与自动化

疵点检测;YOLOv7算法;目标检测;特征提取;注意力机制

defect detection;YOLOv7;object detection;feature extraction;attention mechanism

《纺织工程学报》 2024 (003)

30-40 / 11

塔里木大学校长基金(TDZKSS202138、TDZKSS202134);新疆生产建设兵团财政科技计划项目(1121DB008).

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