Insects play an important role in the natural ecology,it is of great significance for ecology to research on insects.Nowadays,the invasion of alien species has brought serious troubles and a lot of losses to local lif...Insects play an important role in the natural ecology,it is of great significance for ecology to research on insects.Nowadays,the invasion of alien species has brought serious troubles and a lot of losses to local life.However,there is still much room for improvement in the accuracy of insect recognition to effectively prevent the invasion of alien species.As the latest target detection algorithm,YOLOv5 has been used in various scene detection tasks,because of its powerful recognition capabilities and extremely high accuracy.As the problem of imbalance of feature maps at different scales will affect the accuracy of recognition,we propose that adding an attention mechanism based on YOLOv5.The channel attention module and the spatial attention module are added to highlight the important information in the feature map and weaken the secondary information,enhancing the recognition ability of the network.Through training on self-made insect data sets,experimental results show that the mAP@0.5 value reaches 92.5%and the F1 score reaches 0.91.Compared with YOLOv5,the map has increased by 1.7%,and the F1 score has increased by 0.02,proving the effectiveness of insect recognition based on improved YOLOv5.In conclusion,we provide effective technical support for insect identification,especially for pest identification.展开更多
基金This work is supported by the National Natural Science Foundation of China(Grant No.42075007)the Open Grants of the State Key Laboratory of Severe Weather(No.2021LASW-B19).
文摘Insects play an important role in the natural ecology,it is of great significance for ecology to research on insects.Nowadays,the invasion of alien species has brought serious troubles and a lot of losses to local life.However,there is still much room for improvement in the accuracy of insect recognition to effectively prevent the invasion of alien species.As the latest target detection algorithm,YOLOv5 has been used in various scene detection tasks,because of its powerful recognition capabilities and extremely high accuracy.As the problem of imbalance of feature maps at different scales will affect the accuracy of recognition,we propose that adding an attention mechanism based on YOLOv5.The channel attention module and the spatial attention module are added to highlight the important information in the feature map and weaken the secondary information,enhancing the recognition ability of the network.Through training on self-made insect data sets,experimental results show that the mAP@0.5 value reaches 92.5%and the F1 score reaches 0.91.Compared with YOLOv5,the map has increased by 1.7%,and the F1 score has increased by 0.02,proving the effectiveness of insect recognition based on improved YOLOv5.In conclusion,we provide effective technical support for insect identification,especially for pest identification.
