文献类型： 外文期刊
作者： Zhou, Yang 1 ; Zhou, Honghao 3 ; Chen, Yue 4 ;
作者机构： 1.Zhejiang Univ Sci & Technol, Coll Elect & Informat Engn, Hangzhou 310023, Zhejiang, Peoples R China
2.Zhejiang Univ Sci & Technol, Sch Innovat & Entrepreneurship, Hangzhou 310023, Zhejiang, Peoples R China
3.Nanjing Agr Univ, Acad Adv Interdisciplinary Studies, Nanjing 210095, Jiangsu, Peoples R China
4.Zhejiang Acad Agr Sci, Hangzhou 310022, Zhejiang, Peoples R China
关键词： 3D point cloud data; Phenotyping; Chinese Cymbidium; Segmentation
期刊名称：PLANT METHODS （ 影响因子：4.4； 五年影响因子：5.7 ）
ISSN：
年卷期： 2024 年 20 卷 1 期
页码：
收录情况： SCI
摘要： Aiming at the problems of low efficiency and high cost in determining the phenotypic parameters of Cymbidium seedlings by artificial approaches, this study proposed a fully automated measurement scheme for some phenotypic parameters based on point cloud. The key point or difficulty is to design a segmentation method for individual tillers according to the morphology-specific structure. After determining the branch points, two rounds of segmentation schemes were designed. The non-overlapping part of each tiller and the overlapping parts of each ramet are separated in the first round based on the edge point cloud-based segmentation, while in the second round, the overlapping part was sliced along the horizontal direction according to the weight ratio of the tillers above, to obtain the complete point cloud of all tillers. The core superiority of the algorithm is that the segmentation fits the tiller growth direction well, and the extracted skeleton points of tillers are close to the actual growth direction, significantly improving the prediction accuracy of the subsequent phenotypic parameters. Five phenotypic parameters, plant height, leaf number, leaf length, leaf width and leaf area, were automatically calculated. Through experiments, the accuracy of the five parameters reached 98.6%, 100%, 92.2%, 89.1%, and 82.3%, respectively, which reach the needs of various phenotypic applications.
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