针对工业场景下检测模型参数量多、安全绳易与背景混淆问题,提出一种融合FasterNet和RepVGG的目标检测算法(you only look once version 5 fasternet-repvgg-cutmix-bifpn,YOLOv5s-FRCB)。通过引入轻量级网络结构FasterNet Block和RepVG...针对工业场景下检测模型参数量多、安全绳易与背景混淆问题,提出一种融合FasterNet和RepVGG的目标检测算法(you only look once version 5 fasternet-repvgg-cutmix-bifpn,YOLOv5s-FRCB)。通过引入轻量级网络结构FasterNet Block和RepVGG Block替换YOLOv5s部分卷积层,显著减少模型参数量和加快检测速度,满足实时性需求;通过BiFPN特征强连通性提升模型特征学习能力;改进Cutmix数据增强方法,随机将目标嵌入输入图像,更新标签,缓解标签类别不平衡问题,提高泛化性。在自建安全设备佩戴检测数据集上进行试验,结果表明:YOLOv5s-FRCB mAP值达到了96.3%,算法模型内存减少34%,是一种高效实用的安全设备佩戴检测方法;YOLOv5s-FRCB能在保证准确率的同时,进一步降低计算量。展开更多
In the past two decades,the world’s unmanned aerial vehicle(UAV)industry has developed rapidly.Various kinds of UAVs have been used in military and civilian fields.Based on the characteristics of UAVs and the develop...In the past two decades,the world’s unmanned aerial vehicle(UAV)industry has developed rapidly.Various kinds of UAVs have been used in military and civilian fields.Based on the characteristics of UAVs and the development of aerodynamics,this article analyzes the development of aerodynamic optimization design and dynamic numerical simulation technology,then lists engineering applications.Both aerodynamic optimization design and dynamic numerical simulation have greatly shortened the UAV design period and reduced the research and design cost.These two methods gradually replace traditional methods such as wind tunnel test.展开更多
文摘针对工业场景下检测模型参数量多、安全绳易与背景混淆问题,提出一种融合FasterNet和RepVGG的目标检测算法(you only look once version 5 fasternet-repvgg-cutmix-bifpn,YOLOv5s-FRCB)。通过引入轻量级网络结构FasterNet Block和RepVGG Block替换YOLOv5s部分卷积层,显著减少模型参数量和加快检测速度,满足实时性需求;通过BiFPN特征强连通性提升模型特征学习能力;改进Cutmix数据增强方法,随机将目标嵌入输入图像,更新标签,缓解标签类别不平衡问题,提高泛化性。在自建安全设备佩戴检测数据集上进行试验,结果表明:YOLOv5s-FRCB mAP值达到了96.3%,算法模型内存减少34%,是一种高效实用的安全设备佩戴检测方法;YOLOv5s-FRCB能在保证准确率的同时,进一步降低计算量。
文摘In the past two decades,the world’s unmanned aerial vehicle(UAV)industry has developed rapidly.Various kinds of UAVs have been used in military and civilian fields.Based on the characteristics of UAVs and the development of aerodynamics,this article analyzes the development of aerodynamic optimization design and dynamic numerical simulation technology,then lists engineering applications.Both aerodynamic optimization design and dynamic numerical simulation have greatly shortened the UAV design period and reduced the research and design cost.These two methods gradually replace traditional methods such as wind tunnel test.
