数字农科院2.0

Faba Bean (Vicia faba L.) Yield Estimation Based on Dual-Sensor Data

文献类型： 外文期刊

作者： Cui, Yuxing;Ji, Yishan;Liu, Rong;Li, Weiyu;Liu, Yujiao;Liu, Zehao;Zong, Xuxiao;Yang, Tao

作者机构：

关键词： machine learning algorithms;phenotype;unmanned aerial vehicle;growth periods;model

期刊名称： DRONES

ISSN：

年卷期： 2023 年 7 卷 6 期

页码：

收录情况： SCIE（2023版）

摘要： Faba bean is an important member of legumes, which has richer protein levels and great development potential. Yield is an important phenotype character of crops, and early yield estimation can provide a reference for field inputs. To facilitate rapid and accurate estimation of the faba bean yield, the dual-sensor (RGB and multi-spectral) data based on unmanned aerial vehicle (UAV) was collected and analyzed. For this, support vector machine (SVM), ridge regression (RR), partial least squares regression (PLS), and k-nearest neighbor (KNN) were used for yield estimation. Additionally, the fusing data from different growth periods based on UAV was first used for estimating faba bean yield to obtain better estimation accuracy. The results obtained are as follows: for a single-growth period, S2 (12 July 2019) had the best accuracy of the estimation model. For fusion data from the muti-growth period, S2 + S3 (12 August 2019) obtained the best estimation results. Furthermore, the coefficient of determination (R-2) values for RF were higher than other machine learning algorithms, followed by PLS, and the estimation effects of fusion data from a dual-sensor were evidently better than from a single sensor. In a word, these results indicated that it was feasible to estimate the faba bean yield with high accuracy through data fusion based on dual-sensor data and different growth periods.

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