WeedNet-R: a sugar beet field weed detection algorithm based on enhanced RetinaNet and context semantic fusion
Accurate and dependable weed detection technology is a prerequisite for weed control robots to do autonomous weeding. Due to the complexity of the farmland environment and the resemblance between crops and weeds, detecting weeds in the field under natural settings is a difficult task. Existing deep...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-07-01
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| Series: | Frontiers in Plant Science |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fpls.2023.1226329/full |
| _version_ | 1797773436103163904 |
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| author | Zhiqiang Guo Hui Hwang Goh Xiuhua Li Xiuhua Li Muqing Zhang Yong Li |
| author_facet | Zhiqiang Guo Hui Hwang Goh Xiuhua Li Xiuhua Li Muqing Zhang Yong Li |
| author_sort | Zhiqiang Guo |
| collection | DOAJ |
| description | Accurate and dependable weed detection technology is a prerequisite for weed control robots to do autonomous weeding. Due to the complexity of the farmland environment and the resemblance between crops and weeds, detecting weeds in the field under natural settings is a difficult task. Existing deep learning-based weed detection approaches often suffer from issues such as monotonous detection scene, lack of picture samples and location information for detected items, low detection accuracy, etc. as compared to conventional weed detection methods. To address these issues, WeedNet-R, a vision-based network for weed identification and localization in sugar beet fields, is proposed. WeedNet-R adds numerous context modules to RetinaNet’s neck in order to combine context information from many feature maps and so expand the effective receptive fields of the entire network. During model training, meantime, a learning rate adjustment method combining an untuned exponential warmup schedule and cosine annealing technique is implemented. As a result, the suggested method for weed detection is more accurate without requiring a considerable increase in model parameters. The WeedNet-R was trained and assessed using the OD-SugarBeets dataset, which is enhanced by manually adding the bounding box labels based on the publicly available agricultural dataset, i.e. SugarBeet2016. Compared to the original RetinaNet, the mAP of the proposed WeedNet-R increased in the weed detection job in sugar beet fields by 4.65% to 92.30%. WeedNet-R’s average precision for weed and sugar beet is 85.70% and 98.89%, respectively. WeedNet-R outperforms other sophisticated object detection algorithms in terms of detection accuracy while matching other single-stage detectors in terms of detection speed. |
| first_indexed | 2024-03-12T22:06:26Z |
| format | Article |
| id | doaj.art-cb9aa682310c4d33b1014d63f35d8519 |
| institution | Directory Open Access Journal |
| issn | 1664-462X |
| language | English |
| last_indexed | 2024-03-12T22:06:26Z |
| publishDate | 2023-07-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Plant Science |
| spelling | doaj.art-cb9aa682310c4d33b1014d63f35d85192023-07-24T14:17:17ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2023-07-011410.3389/fpls.2023.12263291226329WeedNet-R: a sugar beet field weed detection algorithm based on enhanced RetinaNet and context semantic fusionZhiqiang Guo0Hui Hwang Goh1Xiuhua Li2Xiuhua Li3Muqing Zhang4Yong Li5School of Electrical Engineering, Guangxi University, Nanning, ChinaSchool of Electrical Engineering, Guangxi University, Nanning, ChinaSchool of Electrical Engineering, Guangxi University, Nanning, ChinaGuangxi Key Laboratory of Sugarcane Biology, Guangxi University, Nanning, ChinaGuangxi Key Laboratory of Sugarcane Biology, Guangxi University, Nanning, ChinaSchool of Electrical Engineering, Guangxi University, Nanning, ChinaAccurate and dependable weed detection technology is a prerequisite for weed control robots to do autonomous weeding. Due to the complexity of the farmland environment and the resemblance between crops and weeds, detecting weeds in the field under natural settings is a difficult task. Existing deep learning-based weed detection approaches often suffer from issues such as monotonous detection scene, lack of picture samples and location information for detected items, low detection accuracy, etc. as compared to conventional weed detection methods. To address these issues, WeedNet-R, a vision-based network for weed identification and localization in sugar beet fields, is proposed. WeedNet-R adds numerous context modules to RetinaNet’s neck in order to combine context information from many feature maps and so expand the effective receptive fields of the entire network. During model training, meantime, a learning rate adjustment method combining an untuned exponential warmup schedule and cosine annealing technique is implemented. As a result, the suggested method for weed detection is more accurate without requiring a considerable increase in model parameters. The WeedNet-R was trained and assessed using the OD-SugarBeets dataset, which is enhanced by manually adding the bounding box labels based on the publicly available agricultural dataset, i.e. SugarBeet2016. Compared to the original RetinaNet, the mAP of the proposed WeedNet-R increased in the weed detection job in sugar beet fields by 4.65% to 92.30%. WeedNet-R’s average precision for weed and sugar beet is 85.70% and 98.89%, respectively. WeedNet-R outperforms other sophisticated object detection algorithms in terms of detection accuracy while matching other single-stage detectors in terms of detection speed.https://www.frontiersin.org/articles/10.3389/fpls.2023.1226329/fullprecision farmingdeep learningobject detectionweed recognitionsugar beets |
| spellingShingle | Zhiqiang Guo Hui Hwang Goh Xiuhua Li Xiuhua Li Muqing Zhang Yong Li WeedNet-R: a sugar beet field weed detection algorithm based on enhanced RetinaNet and context semantic fusion Frontiers in Plant Science precision farming deep learning object detection weed recognition sugar beets |
| title | WeedNet-R: a sugar beet field weed detection algorithm based on enhanced RetinaNet and context semantic fusion |
| title_full | WeedNet-R: a sugar beet field weed detection algorithm based on enhanced RetinaNet and context semantic fusion |
| title_fullStr | WeedNet-R: a sugar beet field weed detection algorithm based on enhanced RetinaNet and context semantic fusion |
| title_full_unstemmed | WeedNet-R: a sugar beet field weed detection algorithm based on enhanced RetinaNet and context semantic fusion |
| title_short | WeedNet-R: a sugar beet field weed detection algorithm based on enhanced RetinaNet and context semantic fusion |
| title_sort | weednet r a sugar beet field weed detection algorithm based on enhanced retinanet and context semantic fusion |
| topic | precision farming deep learning object detection weed recognition sugar beets |
| url | https://www.frontiersin.org/articles/10.3389/fpls.2023.1226329/full |
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