YOLOv8s-Longan: a lightweight detection method for the longan fruit-picking UAV

IntroductionDue to the limited computing power and fast flight speed of the picking of unmanned aerial vehicles (UAVs), it is important to design a quick and accurate detecting algorithm to obtain the fruit position.MethodsThis paper proposes a lightweight deep learning algorithm, named YOLOv8s-Long...

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Main Authors: Jun Li, Kaixuan Wu, Meiqi Zhang, Hengxu Chen, Hengyi Lin, Yuju Mai, Linlin Shi
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-01-01
Series:Frontiers in Plant Science
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Online Access:https://www.frontiersin.org/articles/10.3389/fpls.2024.1518294/full
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author Jun Li
Jun Li
Jun Li
Kaixuan Wu
Meiqi Zhang
Hengxu Chen
Hengyi Lin
Yuju Mai
Linlin Shi
author_facet Jun Li
Jun Li
Jun Li
Kaixuan Wu
Meiqi Zhang
Hengxu Chen
Hengyi Lin
Yuju Mai
Linlin Shi
author_sort Jun Li
collection DOAJ
description IntroductionDue to the limited computing power and fast flight speed of the picking of unmanned aerial vehicles (UAVs), it is important to design a quick and accurate detecting algorithm to obtain the fruit position.MethodsThis paper proposes a lightweight deep learning algorithm, named YOLOv8s-Longan, to improve the detection accuracy and reduce the number of model parameters for fruitpicking UAVs. To make the network lightweight and improve its generalization performance, the Average and Max pooling attention (AMA) attention module is designed and integrated into the DenseAMA and C2f-Faster-AMA modules on the proposed backbone network. To improve the detection accuracy, a crossstage local network structure VOVGSCSPC module is designed, which can help the model better understand the information of the image through multiscale feature fusion and improve the perception and expression ability of the model. Meanwhile, the novel Inner-SIoU loss function is proposed as the loss function of the target bounding box.Results and discussionThe experimental results show that the proposed algorithm has good detection ability for densely distributed and mutually occluded longan string fruit under complex backgrounds with a mAP@0.5 of 84.3%. Compared with other YOLOv8 models, the improved model of mAP@0.5 improves by 3.9% and reduces the number of parameters by 20.3%. It satisfies the high accuracy and fast detection requirements for fruit detection in fruit-picking UAV scenarios.
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institution Kabale University
issn 1664-462X
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publishDate 2025-01-01
publisher Frontiers Media S.A.
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spelling doaj-art-4827953295fa4289a30854bae579ed802025-01-22T07:10:56ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2025-01-011510.3389/fpls.2024.15182941518294YOLOv8s-Longan: a lightweight detection method for the longan fruit-picking UAVJun Li0Jun Li1Jun Li2Kaixuan Wu3Meiqi Zhang4Hengxu Chen5Hengyi Lin6Yuju Mai7Linlin Shi8College of Engineering, South China Agricultural University, Guangzhou, ChinaGuangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, ChinaState Key Laboratory of Agricultural Equipment Technology, Beijing, ChinaCollege of Engineering, South China Agricultural University, Guangzhou, ChinaCollege of Engineering, South China Agricultural University, Guangzhou, ChinaCollege of Engineering, South China Agricultural University, Guangzhou, ChinaCollege of Engineering, South China Agricultural University, Guangzhou, ChinaCollege of Engineering, South China Agricultural University, Guangzhou, ChinaCollege of Engineering, South China Agricultural University, Guangzhou, ChinaIntroductionDue to the limited computing power and fast flight speed of the picking of unmanned aerial vehicles (UAVs), it is important to design a quick and accurate detecting algorithm to obtain the fruit position.MethodsThis paper proposes a lightweight deep learning algorithm, named YOLOv8s-Longan, to improve the detection accuracy and reduce the number of model parameters for fruitpicking UAVs. To make the network lightweight and improve its generalization performance, the Average and Max pooling attention (AMA) attention module is designed and integrated into the DenseAMA and C2f-Faster-AMA modules on the proposed backbone network. To improve the detection accuracy, a crossstage local network structure VOVGSCSPC module is designed, which can help the model better understand the information of the image through multiscale feature fusion and improve the perception and expression ability of the model. Meanwhile, the novel Inner-SIoU loss function is proposed as the loss function of the target bounding box.Results and discussionThe experimental results show that the proposed algorithm has good detection ability for densely distributed and mutually occluded longan string fruit under complex backgrounds with a mAP@0.5 of 84.3%. Compared with other YOLOv8 models, the improved model of mAP@0.5 improves by 3.9% and reduces the number of parameters by 20.3%. It satisfies the high accuracy and fast detection requirements for fruit detection in fruit-picking UAV scenarios.https://www.frontiersin.org/articles/10.3389/fpls.2024.1518294/fulllonganlightweight networkattention mechanismYOLOv8-Longan networktarget detection
spellingShingle Jun Li
Jun Li
Jun Li
Kaixuan Wu
Meiqi Zhang
Hengxu Chen
Hengyi Lin
Yuju Mai
Linlin Shi
YOLOv8s-Longan: a lightweight detection method for the longan fruit-picking UAV
Frontiers in Plant Science
longan
lightweight network
attention mechanism
YOLOv8-Longan network
target detection
title YOLOv8s-Longan: a lightweight detection method for the longan fruit-picking UAV
title_full YOLOv8s-Longan: a lightweight detection method for the longan fruit-picking UAV
title_fullStr YOLOv8s-Longan: a lightweight detection method for the longan fruit-picking UAV
title_full_unstemmed YOLOv8s-Longan: a lightweight detection method for the longan fruit-picking UAV
title_short YOLOv8s-Longan: a lightweight detection method for the longan fruit-picking UAV
title_sort yolov8s longan a lightweight detection method for the longan fruit picking uav
topic longan
lightweight network
attention mechanism
YOLOv8-Longan network
target detection
url https://www.frontiersin.org/articles/10.3389/fpls.2024.1518294/full
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