Fruits hidden by green: an improved YOLOV8n for detection of young citrus in lush citrus trees

In order to address the challenges of inefficiency and insufficient accuracy in the manual identification of young citrus fruits during thinning processes, this study proposes a detection methodology using the you only look once for complex backgrounds of young citrus fruits (YCCB-YOLO) approach. Th...

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Main Authors: Gao Ang, Tian Zhiwei, Ma Wei, Song Yuepeng, Ren Longlong, Feng Yuliang, Qian Jianping, Xu Lijia
Format: Article
Language:English
Published: Frontiers Media S.A. 2024-04-01
Series:Frontiers in Plant Science
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fpls.2024.1375118/full
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author Gao Ang
Gao Ang
Tian Zhiwei
Ma Wei
Song Yuepeng
Ren Longlong
Feng Yuliang
Qian Jianping
Xu Lijia
author_facet Gao Ang
Gao Ang
Tian Zhiwei
Ma Wei
Song Yuepeng
Ren Longlong
Feng Yuliang
Qian Jianping
Xu Lijia
author_sort Gao Ang
collection DOAJ
description In order to address the challenges of inefficiency and insufficient accuracy in the manual identification of young citrus fruits during thinning processes, this study proposes a detection methodology using the you only look once for complex backgrounds of young citrus fruits (YCCB-YOLO) approach. The method first constructs a dataset containing images of young citrus fruits in a real orchard environment. To improve the detection accuracy while maintaining the computational efficiency, the study reconstructs the detection head and backbone network using pointwise convolution (PWonv) lightweight network, which reduces the complexity of the model without affecting the performance. In addition, the ability of the model to accurately detect young citrus fruits in complex backgrounds is enhanced by integrating the fusion attention mechanism. Meanwhile, the simplified spatial pyramid pooling fast-large kernel separated attention (SimSPPF-LSKA) feature pyramid was introduced to further enhance the multi-feature extraction capability of the model. Finally, the Adam optimization function was used to strengthen the nonlinear representation and feature extraction ability of the model. The experimental results show that the model achieves 91.79% precision (P), 92.75% recall (R), and 97.32% mean average precision (mAP)on the test set, which were improved by 1.33%, 2.24%, and 1.73%, respectively, compared with the original model, and the size of the model is only 5.4 MB. This study could meet the performance requirements for citrus fruit identification, which provides technical support for fruit thinning.
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spelling doaj.art-1ab990242f1648619972ec5d22e1195e2024-04-10T05:05:03ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2024-04-011510.3389/fpls.2024.13751181375118Fruits hidden by green: an improved YOLOV8n for detection of young citrus in lush citrus treesGao Ang0Gao Ang1Tian Zhiwei2Ma Wei3Song Yuepeng4Ren Longlong5Feng Yuliang6Qian Jianping7Xu Lijia8College of Mechanical and Electronic Engineering, Shandong Agricultural University, Tai’an, Shandong, ChinaInstitute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu, ChinaInstitute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu, ChinaInstitute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu, ChinaCollege of Mechanical and Electronic Engineering, Shandong Agricultural University, Tai’an, Shandong, ChinaCollege of Mechanical and Electronic Engineering, Shandong Agricultural University, Tai’an, Shandong, ChinaCollege of Engineering, China Agricultural University, Beijing, ChinaInstitute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, ChinaCollege of Mechanical and Electrical Engineering, Sichuan Agriculture University, Ya’an, ChinaIn order to address the challenges of inefficiency and insufficient accuracy in the manual identification of young citrus fruits during thinning processes, this study proposes a detection methodology using the you only look once for complex backgrounds of young citrus fruits (YCCB-YOLO) approach. The method first constructs a dataset containing images of young citrus fruits in a real orchard environment. To improve the detection accuracy while maintaining the computational efficiency, the study reconstructs the detection head and backbone network using pointwise convolution (PWonv) lightweight network, which reduces the complexity of the model without affecting the performance. In addition, the ability of the model to accurately detect young citrus fruits in complex backgrounds is enhanced by integrating the fusion attention mechanism. Meanwhile, the simplified spatial pyramid pooling fast-large kernel separated attention (SimSPPF-LSKA) feature pyramid was introduced to further enhance the multi-feature extraction capability of the model. Finally, the Adam optimization function was used to strengthen the nonlinear representation and feature extraction ability of the model. The experimental results show that the model achieves 91.79% precision (P), 92.75% recall (R), and 97.32% mean average precision (mAP)on the test set, which were improved by 1.33%, 2.24%, and 1.73%, respectively, compared with the original model, and the size of the model is only 5.4 MB. This study could meet the performance requirements for citrus fruit identification, which provides technical support for fruit thinning.https://www.frontiersin.org/articles/10.3389/fpls.2024.1375118/fullYOLO V8young citrus fruitdeep learningtarget detectionlightweight network
spellingShingle Gao Ang
Gao Ang
Tian Zhiwei
Ma Wei
Song Yuepeng
Ren Longlong
Feng Yuliang
Qian Jianping
Xu Lijia
Fruits hidden by green: an improved YOLOV8n for detection of young citrus in lush citrus trees
Frontiers in Plant Science
YOLO V8
young citrus fruit
deep learning
target detection
lightweight network
title Fruits hidden by green: an improved YOLOV8n for detection of young citrus in lush citrus trees
title_full Fruits hidden by green: an improved YOLOV8n for detection of young citrus in lush citrus trees
title_fullStr Fruits hidden by green: an improved YOLOV8n for detection of young citrus in lush citrus trees
title_full_unstemmed Fruits hidden by green: an improved YOLOV8n for detection of young citrus in lush citrus trees
title_short Fruits hidden by green: an improved YOLOV8n for detection of young citrus in lush citrus trees
title_sort fruits hidden by green an improved yolov8n for detection of young citrus in lush citrus trees
topic YOLO V8
young citrus fruit
deep learning
target detection
lightweight network
url https://www.frontiersin.org/articles/10.3389/fpls.2024.1375118/full
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