https://doi.org/10.4081/jae.2024.1588

Fast identification of tomatoes in natural environments by improved YOLOv5s

Vol. 55 No. 3 (2024)
Published: 9 July 2024
Tomatoes, YOLOv5s, fast identification
Abstract Views: 114
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Authors

Hongbo Wang
wanghb@imau.edu.cn
Inner Mongolia Agricultural University Ringgold Standard Institution, Hohhot, China.
Zhicheng Xie
Inner Mongolia Agricultural University Ringgold Standard Institution, Hohhot, China.
Yongzheng Yang
Inner Mongolia Agricultural University Ringgold Standard Institution, Hohhot, China.
Junmao Li
Inner Mongolia Agricultural University Ringgold Standard Institution, Hohhot, China.
Zilu Huang
Inner Mongolia Agricultural University Ringgold Standard Institution, Hohhot, China.
Zhihong Yu
Inner Mongolia Agricultural University Ringgold Standard Institution, Hohhot, China.

Real time recognition and detection of tomato fruit maturity is a key function of tomato picking robots. Existing recognition and detection algorithms have slow speed and low recognition accuracy for small tomatoes. Here, a tomato fruit maturity detection model YOLOv5s3 based on improved YOLOv5s was proposed and its accuracy was verified through comparative experiments. On the basis of YOLOv5s, an SC module was proposed based on channel shuffle packet convolution. Then, A C3S module is constructed, which replaced the original C3 module with this C3S module to reduce the number of parameters while maintaining the feature expression ability of the original network. And a 3-feature fusion FF module was put forward, which accepted inputs from three feature layers. The FF module fused two feature maps from the backbone network. The C2 layer of the backbone was integrated, and the large target detection head was removed to use dual head detection to enhance the detection ability of small targets. The experimental results showed that the improved model has a detection accuracy of 94.8%, a recall rate of 96%, a parameter quantity of 3.02M, and an average accuracy (mAP0.5) of 93.3% for an intersection over union (IoU) of 0.5. The detection speed reaches 9.4ms. It can quickly and accurately identify the maturity of tomato fruits, and the detection speed is 22.95%, 33.33%, 48.91%, 68.35%, 15%, and 25.98% higher than the original YOLOv5s, YOLOv5m, YOLOv5l, YOLOv5x, YOLOv5n, and YOLOv4, respectively. The real-time testing visualization results of different models indicated that the improved model can effectively improve detection speed and solve the problem of low recognition rate for small tomatoes, which can provide reference for the development of picking robots.

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Google Scholar
Europe PMC
Cámara-Zapata J.M., Brotons-Martínez J.M., Simón-Grao S., Martinez-Nicolás J.J., García-Sánchez F. 2019. Cost–benefit analysis of tomato in soilless culture systems with saline water under greenhouse conditions. J. Sci. Food Agric. 99:5842-5851. DOI: https://doi.org/10.1002/jsfa.9857
Chen K.Y., Zhu L.F., Song P., Tian X.M., Huang C.L., Nie X.H., Xiao A.L., He L.R. 2021. Recognition of cotton terminal bud in field using improved Faster R-CNN by integrating dynamic mechanism. Transactions of the Chinese Society of Agricultural Engineering. 37(16):161-168.
Chen M.Q, Yu L.J., Zhi C., Sun R.J., Zhu S.W., Gao Z.Y., Ke Z.X., Zhu M.Q., Zhang Y.M. 2022. Improved faster R-CNN for fabric defect detection based on Gabor filter with Genetic Algorithm optimization. Computers in Industry. 134:103551. DOI: https://doi.org/10.1016/j.compind.2021.103551
Du F.J., Jiao S.J. 2022. Improvement of lightweight convolutional neural network model based on YOLO algorithm and its research in pavement defect detection. Sensors. 22:3537. DOI: https://doi.org/10.3390/s22093537
Jiang B.R., Luo R.X., Mao J.Y., Xiao T.T., Jiang Y.N. 2018. Acquisition of localization confidence for accurate object detection. European Conference on Computer Vision (ECCV) 2018. 1807.11590. DOI: https://doi.org/10.1007/978-3-030-01264-9_48
Jiang T., Li C., Yang M., Wang Z. 2022. An improved YOLOv5s algorithm for object detection with an attention mechanism. Electronics. 11:2494. DOI: https://doi.org/10.3390/electronics11162494
Liu X.G., Fan C., Li J.N., Gao Y.L., Zhang Y.Y., Yang Q.L. 2020. Identification method of strawberry based on convolutional neural network. Transactions of the Chinese Society for Agricultural Machinery. 51(2):237-244.
Lü S.L., Lu S.H., Li Z., Hong T.S., Xue Y.J., Wu B.L. 2019. Orange recognition method using improved YOLOv3-LITE lightweight neural network. Transactions of the Chinese Society of Agricultural Engineering. 35(17):205-214.
Ma L., Guo X.L., Zhao S.K., Yin D.D., Fu Y.Y., Duan, P.Q., Wang B.B., Zhang L. 2021. Algorithm of strawberry disease recognition based on deep convolutional neural network. Complexity. 2021:6683255. DOI: https://doi.org/10.1155/2021/6683255
Qi J.T., Liu X.N., Liu K., Xu F.R., Guo H., Tian X.L., Li M., Bao Z.Y., Li Y. 2022. An improved YOLOv5 model based on visual attention mechanism: Application to recognition of tomato virus disease. Computers and Electronics in Agriculture. 194:106780. DOI: https://doi.org/10.1016/j.compag.2022.106780
Qiao Y., Hu Y., Zheng Z., Yang H., Zhang K., Hou J., Guo J. 2022. A counting method of red jujube based on improved YOLOv5s. Agriculture. 12:2071. DOI: https://doi.org/10.3390/agriculture12122071
Redmon J., Divvala S., Girshick R., Farhadi A. 2016. You only look once: unified, real-time object detection. 2016 IEEE Conference on Computer Vision and Pattern Recognition. 2016:779-788. DOI: https://doi.org/10.1109/CVPR.2016.91
Seo D., Cho B-H., Kim K-C. 2021. Development of monitoring robot system for tomato fruits in hydroponic greenhouses. Agronomy. 11:2211. DOI: https://doi.org/10.3390/agronomy11112211
Shang Y.Y., Zhang Q.R., Song H.B. 2022. Application of deep learning using YOLOv5s to apple flower detection in natural scenes. Transactions of the Chinese Society of Agricultural Engineering. 38(9): 222-229.
Sun F.G., Wang Y.L., Lan P., Zhang X.D., Chen X.D., Wang Z.J. 2022. Identification of apple fruit diseases using improved YOLOv5s and transfer learning. Transactions of the Chinese Society of Agricultural Engineering. 38(11):171-179.
Wang F., Sun Z., Chen Y., Zheng H., Jiang J. 2022. Xiaomila green pepper target detection method under complex environment based on improved YOLOv5s. Agronomy. 12:1477. DOI: https://doi.org/10.3390/agronomy12061477
Wang L.S., Qin M.X., Lei J.Y., Wang X.F., Tan K.Z. 2021. Blueberry maturity recognition method based on improved YOLOv4-Tiny. Transactions of the Chinese Society of Agricultural Engineering 37(18):170-178.
Xiao Q.M., Niu W.D., Zhang H. 2015. Predicting fruit maturity stage dynamically based on fuzzy recognition and color feature. Proceedings of 2015 IEEE 6th International Conference on Software Engineering and Service Science. 2015:968-972. DOI: https://doi.org/10.1109/ICSESS.2015.7339210
Xu W.C., Yan Z. 2022. Research on strawberry disease diagnosis based on improved residual network recognition model. Mathematical Problems in Engineering. 2022:6431942. DOI: https://doi.org/10.1155/2022/6431942
Yang J., Qian Z., Zhang Y.J., Qin Y., Miao H. 2022. Real-time recognition of tomatoes in complex environments based on improved YOLOv4-tiny. Transactions of the Chinese Society of Agricultural Engineering. 38(9):215-221.
Yang R.L., Hu Y.W., Yao Y., Gao M., Liu R.M. 2022. Fruit target detection based on BCo-YOLOv5 model. Mobile Information Systems. 2022:8457173 DOI: https://doi.org/10.1155/2022/8457173
Yao Q., Gu J.L., Lv J., Guo L.J., Tang J., Yang B.J, Xu W.G. 2020. Automatic detection model for pest damage symptoms on rice canopy based on improved RetinaNet. Transactions of the Chinese Society of Agricultural Engineering. 36(15):182-188.
Yu X.H., Kong D.Y., Xie X.X., Wang Q., Bai X.W. 2022. Deep learning-based target recognition and detection for tomato pollination robots. Transactions of the Chinese Society of Agricultural Engineering. 38(24):129-137.
Yu Y., Zhao J., Gong Q., Huang C., Zheng G., Ma J. 2021. Real-time underwater maritime object detection in side-scan sonar images based on transformer-YOLOv5. Remote Sens. 13:3555. DOI: https://doi.org/10.3390/rs13183555
Zhang F., Chen Z.J., Bao R.F., Zhang C.C., Wang Z.H. 2021. Recognition of dense cherry tomatoes based on improved YOLOv4-LITE lightweight neural network. Transactions of the Chinese Society of Agricultural Engineering. 37(16):270-27
Zhang Y.Q., Xiao D.Q., Chen H.K., Liu Y.F. 2021. Rice panicle detection method based on improved faster R-CNN. Transactions of the Chinese Society for Agricultural Machinery. 52(8):231-240.
Zhou G.H., Ma S., Liang F.F. 2022. Recognition of the apple in panoramic images based on improved YOLOv4 model. Transactions of the Chinese Society of Agricultural Engineering. 38(21):159-168.

How to Cite

Wang, H. (2024) “Fast identification of tomatoes in natural environments by improved YOLOv5s”, Journal of Agricultural Engineering, 55(3). doi: 10.4081/jae.2024.1588.
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