基于三维模型的谷子表型特征研究

IF 0.6 Q4 AGRICULTURAL ENGINEERING INMATEH-Agricultural Engineering Pub Date : 2023-04-30 DOI:10.35633/inmateh-69-55
Lili Sun, Yaoyu Li, Yu-Zhu Wang, Weijie Shi, Wuping Zhang, Xiaoying Zhang, Huamin Zhao, Fuzhong Li
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引用次数: 0

摘要

小米是我国古代栽培作物之一,具有营养价值高、耐旱、贫瘠等特点。它在确保我国粮食供应方面也发挥着重要作用。目前,小米育种工作大多采用人工提取表型信息,工作量大,效率低。因此,开发一种自动化、高效、准确的小米表型检测方法,对提取小米基因组具有现实意义。在本研究中,采用基于运动结构的稀疏重建(SfM)和基于补丁的多视图立体(PMVS)相结合的方法来选择三个不同的小米品种。对每个周期的9个样本中的81个样本进行重建,以获得小米的3D模型。采用条件滤波和统计滤波相结合的方法去除拍摄过程中产生的噪声点,最后利用获得的点云数据对小米株高、叶面积等农艺性状进行测量。结果表明,5°的间隔角是小米的最佳重建角。点云测量结果与人工测量数据回归分析的确定系数R2均大于0.94,表明该方法对不同时期的不同谷子具有较高的适用性,本文方法对谷子进行高通量测量是可行的。本研究为小米表型信息测量装置的研制提供了理论依据
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STUDY ON PHENOTYPIC CHARACTERISTICS OF MILLET BASED ON 3D MODEL
As one of the ancient cultivated crops in China, millet has the characteristics of high nutritional value, drought resistance and barrenness. It also plays an important role in ensuring the supply of food in our country. At present, most of the millet breeding work uses manual extraction of phenotypic information, which is laborintensive and inefficient. Therefore, the development of an automated, efficient and accurate millet phenotype detection method has practical significance for the extraction of the millet genome. In this study, a combination of sparse reconstruction based on Structure from Motion (SfM) and Patch-based Multi-View Stereo (PMVS) was used to select three different varieties of millet. A total of 81 samples of 9 samples in each period were reconstructed to obtain a 3D model of millet. The combination of conditional filtering and statistical filtering is used to remove the noise points generated during the photographing process, and finally the obtained point cloud data is used to measure the agronomic traits of millet such as plant height and leaf area. The results show that the interval angle of 5° is the best reconstruction angle of millet. The coefficient of determination R2 of point cloud measurement results and manual measurement data regression analysis is higher than 0.94, indicating that the method used for 3D reconstruction has high applicability to different millet in different periods and high-throughput measurement of millet by the method in this paper is feasible. This study provides a theoretical basis for a millet phenotypic information measurement device
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来源期刊
INMATEH-Agricultural Engineering
INMATEH-Agricultural Engineering AGRICULTURAL ENGINEERING-
CiteScore
1.30
自引率
57.10%
发文量
98
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