Improved YOLOv5 Network for Detection of Peach Blossom Quantity

Li Sun, Jingfa Yao (), Hongbo Cao (), Haijiang Chen and Guifa Teng
Additional contact information
Li Sun: School of Horticulture, Hebei Agricultural University, Baoding 071001, China
Jingfa Yao: Software Engineering Department, Hebei Software Institute, Baoding 071000, China
Hongbo Cao: School of Horticulture, Hebei Agricultural University, Baoding 071001, China
Haijiang Chen: School of Horticulture, Hebei Agricultural University, Baoding 071001, China
Guifa Teng: School of Information Science and Technology, Hebei Agricultural University, Baoding 071001, China

Agriculture, 2024, vol. 14, issue 1, 1-20

Abstract: In agricultural production, rapid and accurate detection of peach blossom bloom plays a crucial role in yield prediction, and is the foundation for automatic thinning. The currently available manual operation-based detection and counting methods are extremely time-consuming and labor-intensive, and are prone to human error. In response to the above issues, this paper proposes a natural environment peach blossom detection model based on the YOLOv5 model. First, a cascaded network is used to add an output layer specifically for small target detection on the basis of the original three output layers. Second, a combined context extraction module (CAM) and feature refinement module (FSM) are added. Finally, the network clusters and statistically analyzes the range of multi-scale channel elements using the K-means++ algorithm, obtaining candidate box sizes that are suitable for the dataset. A novel bounding box regression loss function (SIoU) is used to fuse the directional information between the real box and the predicted box to improve detection accuracy. The experimental results show that, compared with the original YOLOv5s model, our model has correspondingly improved AP values for identifying three different peach blossom shapes, namely, bud, flower, and falling flower, by 7.8%, 10.1%, and 3.4%, respectively, while the final mAP value for peach blossom recognition increases by 7.1%. Good results are achieved in the detection of peach blossom flowering volume. The proposed model provides an effective method for obtaining more intuitive and accurate data sources during the process of peach yield prediction, and lays a theoretical foundation for the development of thinning robots.

Keywords: peach blossom; flowering quantity; target detection; YOLOv5 (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2024
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.mdpi.com/2077-0472/14/1/126/pdf (application/pdf)
https://www.mdpi.com/2077-0472/14/1/126/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jagris:v:14:y:2024:i:1:p:126-:d:1319668

Access Statistics for this article

Agriculture is currently edited by Ms. Leda Xuan

More articles in Agriculture from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().