Article(id=1325194289143227271, tenantId=1146029695717560320, journalId=1319690209941618849, issueId=1325194246805926358, articleNumber=null, orderNo=null, doi=10.12398/j.issn.2096-7217.2024.02.005, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1706716800000, receivedDateStr=2024-02-01, revisedDate=1710864000000, revisedDateStr=2024-03-20, acceptedDate=null, acceptedDateStr=null, onlineDate=1793880539450, onlineDateStr=2026-11-05, pubDate=1715702400000, pubDateStr=2024-05-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793880539450, onlineIssueDateStr=2026-11-05, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793880539450, creator=13701087609, updateTime=1793880539450, updator=13701087609, issue=Issue{id=1325194246805926358, tenantId=1146029695717560320, journalId=1319690209941618849, year='2024', volume='5', issue='2', pageStart='1', pageEnd='69', issueExtLink='null', onlineDate='null', pubDate='1715702400000', pubDateStr='2024-05-15', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793880529357, creator='13701087609', updateTime=1793944035775, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1325460612838458345, tenantId=1146029695717560320, journalId=1319690209941618849, issueId=1325194246805926358, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1325460612838458346, tenantId=1146029695717560320, journalId=1319690209941618849, issueId=1325194246805926358, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=42, endPage=50, ext={EN=ArticleExt(id=1325194289306805128, articleId=1325194289143227271, tenantId=1146029695717560320, journalId=1319690209941618849, language=EN, title=Study of tea buds recognition and detection based on improved YOLOv7 model, columnId=null, journalTitle=Journal of Intelligent Agricultural Mechanization, columnName=null, runingTitle=null, highlight=null, articleAbstract=

To effectively identify tea buds in complex environments and improve the precision of intelligent harvesting while minimizing damage to tea trees, this study addresses the issues of low detection accuracy and poor robustness exhibited by traditional target detection algorithms in tea gardens, and proposes YOLOv7-tea model for tea bud identification and detection based on an improved YOLOv7, so as to achieve rapid recognition and detection of tea buds. First, tea bud images were collected and annotated, and data augmentation was performed to construct a tea bud dataset. Next, the CBAM attention mechanism module was introduced into three feature extraction layers of the YOLOv7 backbone network to enhance the model's feature extraction capability; the SPD-Conv module was used to replace the SConv module in the neck network's downsampling module to reduce the loss of small object features; and the EIoU loss function was employed to optimize box regression, thereby improving the accuracy of the predicted boxes. Finally, a comparative experiment was conducted between other target detection models and the YOLOv7-tea model using the tea bud image dataset as a sample, and the recognition effect of tea buds shot at different distances and angles was tested. The experimental results show that the YOLOv7-tea network model outperforms the YOLOv7 model in terms of precision (P), recall (R), and mean average precision (mAP) by 2.87, 6.91, and 8.69 percentage points, respectively. Additionally, the model has a faster detection speed and exhibits higher confidence scores in the recognition and detection of tea buds in complex backgrounds. The YOLOv7-tea model constructed in this study demonstrates better recognition performance for small-sized tea leaf buds, reducing instances of missed detection and false alarms. It exhibits good robustness and real-time performance, offering valuable insights for estimating tea yield and implementing intelligent harvesting.

, authors=Tangwei WEI, Jincheng ZHANG, Jing WANG, Qingyan ZHOU*, authorsList=Tangwei WEI, Jincheng ZHANG, Jing WANG, Qingyan ZHOU, authorCompany=null, correspAuthors=Qingyan ZHOU, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1325194289956922249, articleId=1325194289143227271, tenantId=1146029695717560320, journalId=1319690209941618849, language=CN, title=基于改进YOLOv7的茶叶嫩芽识别模型研究, columnId=0, journalTitle=智能化农业装备学报(中英文), columnName=, runingTitle=null, highlight=null, articleAbstract=

为了在复杂环境中有效识别茶叶嫩芽并在最大限度避免伤害茶树的情况下,提高智能化采摘精度,本研究针对传统目标检测算法在茶园中存在的检测精度低、鲁棒性差等问题,提出一种基于改进YOLOv7的茶叶嫩芽识别与检测的模型YOLOv7-tea,从而实现对茶叶嫩芽的快速识别与检测。首先,采集茶叶嫩芽图像并完成嫩芽图像的标注和数据增强,构建茶叶嫩芽数据集。其次,通过在YOLOv7主干网络的3个特征提取层中引入CBAM注意力机制模块,增强模型对特征提取的能力;采用SPD-Conv模块替换颈部网络下采样模块中的SConv模块,以减少小目标特征的丢失;通过EIoU损失函数优化框回归损失,提升预测框的准确率。最后,以茶叶嫩芽图像数据集为样本将其他目标检测模型与YOLOv7-tea模型进行对比试验,并对不同距离、不同角度拍摄的茶叶嫩芽图像进行识别效果检测。试验结果表明,YOLOv7-tea网络模型比YOLOv7模型的精确率(Precision,P)、召回率(Recall,R)和识别平均精度(mAP)值分别高出2.87、6.91和8.69个百分点,且模型的检测速度更快,在复杂背景下对茶叶嫩芽的识别与检测具有更高的置信度分数。该研究构建的YOLOv7-tea模型对小尺寸茶叶嫩芽的识别效果较好,减少了漏检和误检的情况,具有良好的鲁棒性和实时性,可为茶叶的产量预估和智能化采摘提供参考。

, authors=魏堂伟, 张津诚, 王晶, 周庆燕*, authorsList=魏堂伟, 张津诚, 王晶, 周庆燕, authorCompany=null, correspAuthors=周庆燕, authorNote=

魏堂伟,女,1997年生,安徽六安人,硕士研究生;研究方向为人工智能。E-mail:

, correspAuthorsNote=
* 周庆燕,女,1988年生,安徽安庆人,博士,讲师;研究方向为人工智能。E-mail:
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魏堂伟,女,1997年生,安徽六安人,硕士研究生;研究方向为人工智能。E-mail:

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基于改进YOLOv7的茶叶嫩芽识别模型研究
魏堂伟 , 张津诚 , 王晶 , 周庆燕 *
智能化农业装备学报(中英文) | 2024,5(2): 42-50
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智能化农业装备学报(中英文) | 2024 , 5 (2) : 42 -50
基于改进YOLOv7的茶叶嫩芽识别模型研究
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魏堂伟 , 张津诚, 王晶, 周庆燕*
作者信息
  • 安徽农业大学信息与人工智能学院,安徽 合肥,230036
通讯作者:
* 周庆燕,女,1988年生,安徽安庆人,博士,讲师;研究方向为人工智能。E-mail:
作者简介:

魏堂伟,女,1997年生,安徽六安人,硕士研究生;研究方向为人工智能。E-mail:

Study of tea buds recognition and detection based on improved YOLOv7 model
Tangwei WEI , Jincheng ZHANG, Jing WANG, Qingyan ZHOU*
Affiliations
  • College of Information and Artificial Intelligence, Anhui Agricultural University, Hefei 230036, China
出版时间: 2024-05-15 doi: 10.12398/j.issn.2096-7217.2024.02.005
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为了在复杂环境中有效识别茶叶嫩芽并在最大限度避免伤害茶树的情况下,提高智能化采摘精度,本研究针对传统目标检测算法在茶园中存在的检测精度低、鲁棒性差等问题,提出一种基于改进YOLOv7的茶叶嫩芽识别与检测的模型YOLOv7-tea,从而实现对茶叶嫩芽的快速识别与检测。首先,采集茶叶嫩芽图像并完成嫩芽图像的标注和数据增强,构建茶叶嫩芽数据集。其次,通过在YOLOv7主干网络的3个特征提取层中引入CBAM注意力机制模块,增强模型对特征提取的能力;采用SPD-Conv模块替换颈部网络下采样模块中的SConv模块,以减少小目标特征的丢失;通过EIoU损失函数优化框回归损失,提升预测框的准确率。最后,以茶叶嫩芽图像数据集为样本将其他目标检测模型与YOLOv7-tea模型进行对比试验,并对不同距离、不同角度拍摄的茶叶嫩芽图像进行识别效果检测。试验结果表明,YOLOv7-tea网络模型比YOLOv7模型的精确率(Precision,P)、召回率(Recall,R)和识别平均精度(mAP)值分别高出2.87、6.91和8.69个百分点,且模型的检测速度更快,在复杂背景下对茶叶嫩芽的识别与检测具有更高的置信度分数。该研究构建的YOLOv7-tea模型对小尺寸茶叶嫩芽的识别效果较好,减少了漏检和误检的情况,具有良好的鲁棒性和实时性,可为茶叶的产量预估和智能化采摘提供参考。

茶叶嫩芽  /  目标检测  /  CBAM注意力机制  /  自动化采摘  /  YOLOv7

To effectively identify tea buds in complex environments and improve the precision of intelligent harvesting while minimizing damage to tea trees, this study addresses the issues of low detection accuracy and poor robustness exhibited by traditional target detection algorithms in tea gardens, and proposes YOLOv7-tea model for tea bud identification and detection based on an improved YOLOv7, so as to achieve rapid recognition and detection of tea buds. First, tea bud images were collected and annotated, and data augmentation was performed to construct a tea bud dataset. Next, the CBAM attention mechanism module was introduced into three feature extraction layers of the YOLOv7 backbone network to enhance the model's feature extraction capability; the SPD-Conv module was used to replace the SConv module in the neck network's downsampling module to reduce the loss of small object features; and the EIoU loss function was employed to optimize box regression, thereby improving the accuracy of the predicted boxes. Finally, a comparative experiment was conducted between other target detection models and the YOLOv7-tea model using the tea bud image dataset as a sample, and the recognition effect of tea buds shot at different distances and angles was tested. The experimental results show that the YOLOv7-tea network model outperforms the YOLOv7 model in terms of precision (P), recall (R), and mean average precision (mAP) by 2.87, 6.91, and 8.69 percentage points, respectively. Additionally, the model has a faster detection speed and exhibits higher confidence scores in the recognition and detection of tea buds in complex backgrounds. The YOLOv7-tea model constructed in this study demonstrates better recognition performance for small-sized tea leaf buds, reducing instances of missed detection and false alarms. It exhibits good robustness and real-time performance, offering valuable insights for estimating tea yield and implementing intelligent harvesting.

tea buds  /  object detection  /  CBAM attention mechanism  /  automated picking  /  YOLOv7
魏堂伟, 张津诚, 王晶, 周庆燕. 基于改进YOLOv7的茶叶嫩芽识别模型研究. 智能化农业装备学报(中英文), 2024 , 5 (2) : 42 -50 . DOI: 10.12398/j.issn.2096-7217.2024.02.005
Tangwei WEI, Jincheng ZHANG, Jing WANG, Qingyan ZHOU. Study of tea buds recognition and detection based on improved YOLOv7 model[J]. Journal of Intelligent Agricultural Mechanization, 2024 , 5 (2) : 42 -50 . DOI: 10.12398/j.issn.2096-7217.2024.02.005
  • 安徽省科技计划项目(2022MKS12)
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2024年第5卷第2期
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doi: 10.12398/j.issn.2096-7217.2024.02.005
  • 接收时间:2024-02-01
  • 首发时间:2026-11-05
  • 出版时间:2024-05-15
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  • 收稿日期:2024-02-01
  • 修回日期:2024-03-20
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安徽省科技计划项目(2022MKS12)
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    安徽农业大学信息与人工智能学院,安徽 合肥,230036

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* 周庆燕,女,1988年生,安徽安庆人,博士,讲师;研究方向为人工智能。E-mail:
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2种不同金属材料的力学参数
科
Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)
属
Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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