mal analysis, Validation, Writing – original draft. Xiangjun Wang : Formal analysis, Writing – review & editing, Supervision. Li Li : Formal analysis, Methodology. Shuqi Lin : Project administration. Data availability Some of the datasets, model weights, and code used and analyzed in this study have been uploaded to the website https://github.com/aaaaasleep/Rsegnet , and all of the homemade datasets in this study (36 in total) are available by contacting the corresponding author. Declaration of competing interest
Open resource ↗https://github.com/aaaaasleep/Rsegnet · Rsegnet · lines:654-664Paper record
RsegNet: An Advanced Methodology for Individual Rubber Tree Segmentation and Structural Parameter Extraction from UAV LiDAR Point Clouds.
Plant phenomics (Washington, D.C.) · 16 Jul 2025 · 10.1016/j.plaphe.2025.100090
Abstract
As an important tropical cash crop, rubber trees play a key role in the rubber industry and ecosystem. However, a significant challenge in precision agriculture and refined management of rubber plantation lies in the limitations of traditional point cloud segmentation methods, which struggle to accurately extract structural parameters and capture the spatial layout of individual rubber trees. Therefore, we propose an optimized dual-channel clustering method for the UAV LiDAR-based Rubber Tree Point Cloud Segmentation Network (RsegNet) for improved assessment of rubber tree architecture and traits. Firstly, we designed a cosine feature extraction network, termed CosineU-Net, to address the branch-and-leaf overlap problem by calculating the cosine similarity of the spatial and positional features of each point, leveraging deep learning approaches to improve feature representation. Secondly, we constructed a dual-channel clustering module reducing prediction error in rubber tree point cloud data, integrating multi-class association and background classification to tackle background interference. The cluster identification and separation accuracy in high-dimensional data processing is enhanced through a dynamic clustering optimization algorithm. In our self-built dataset and across five regions of the FOR-instance forest dataset, RsegNet achieved the best performance compared to five state-of-the-art networks, reaching an F-score of 86.1%. This method calculated structural attributes including height, crown diameter, and volume for rubber trees in three areas under different environments in Danzhou City, Hainan Province, providing robust support for precise monitoring, plantation management, and health assessment.
Code and data availability