Multi-dimensional variables and feature parameter selection for aboveground biomass estimation of potato based on UAV multispectral imagery
文献类型: 外文期刊
第一作者: Luo, Shanjun
作者: Luo, Shanjun;He, Yingbin;Li, Jianping;Yang, Jinpeng;Wang, Xiangyi;Ma, Xintian;Luo, Shanjun;He, Yingbin;Luo, Shanjun;Jiang, Xueqin;Jiao, Weihua;Zhang, Shengli;Xu, Fei;Han, Zhongcai;Sun, Jing;Lin, Zeru
作者机构:
关键词: remote sensing phenotypes; spectral indices; texture; geometric parameters; frequency-domain indicators; variables preference
期刊名称:FRONTIERS IN PLANT SCIENCE ( 影响因子:6.627; 五年影响因子:7.255 )
ISSN: 1664-462X
年卷期: 2022 年 13 卷
页码:
收录情况: SCI
摘要: Aboveground biomass (AGB) is an essential assessment of plant development and guiding agricultural production management in the field. Therefore, efficient and accurate access to crop AGB information can provide a timely and precise yield estimation, which is strong evidence for securing food supply and trade. In this study, the spectral, texture, geometric, and frequency-domain variables were extracted through multispectral imagery of drones, and each variable importance for different dimensional parameter combinations was computed by three feature parameter selection methods. The selected variables from the different combinations were used to perform potato AGB estimation. The results showed that compared with no feature parameter selection, the accuracy and robustness of the AGB prediction models were significantly improved after parameter selection. The random forest based on out-of-bag (RF-OOB) method was proved to be the most effective feature selection method, and in combination with RF regression, the coefficient of determination (R-2) of the AGB validation model could reach 0.90, with root mean square error (RMSE), mean absolute error (MAE), and normalized RMSE (nRMSE) of 71.68 g/m(2), 51.27 g/m(2), and 11.56%, respectively. Meanwhile, the regression models of the RF-OOB method provided a good solution to the problem that high AGB values were underestimated with the variables of four dimensions. Moreover, the precision of AGB estimates was improved as the dimensionality of parameters increased. This present work can contribute to a rapid, efficient, and non-destructive means of obtaining AGB information for crops as well as provide technical support for high-throughput plant phenotypes screening.
分类号:
- 相关文献
作者其他论文 更多>>
-
A CRISPR-Cas12a-based platform facilitates the detection and serotyping of Streptococcus suis serotype 2
作者:Wang, Lu;Sun, Jing;Zhao, Jiyu;Bai, Jieyu;Zhang, Yueling;Zhu, Yao;Zhang, Wanjiang;Wang, Chunlai;Liu, Siguo;Li, Gang;Wang, Lu;Bai, Jieyu;Zhao, Jiyu;Langford, Paul R.
关键词:CRISPR; Cas12a; crRNA; Streptococcus suis serotype 2; Diagnostics
-
Research Progress on Mango Post-Harvest Ripening Physiology and the Regulatory Technologies
作者:Liu, Bangdi;Xin, Qi;Zhang, Min;Chen, Jianhu;Lu, Qingchen;Zhou, Xinqun;Feng, Wei;Pei, Haisheng;Sun, Jing;Liu, Bangdi;Xin, Qi;Zhang, Min;Chen, Jianhu;Lu, Qingchen;Zhou, Xinqun;Li, Xiangxin;Zhang, Wanli;Feng, Wei;Pei, Haisheng;Sun, Jing;Xin, Qi;Lu, Qingchen;Li, Xiangxin;Zhang, Wanli
关键词:postharvest mango; ripening; physiological changes; metabolic pathways; preservation technology
-
Effects of hydroxylation at C3 ' on the B ring and diglycosylation at C3 on the C ring on flavonols inhibition of alpha-glucosidase activity
作者:Qin, Yajuan;Chen, Xiaoai;Xu, Fei;Gu, Chunhe;Zhu, Kexue;Zhang, Yanjun;Wu, Gang;Tan, Lehe;Qin, Yajuan;Wang, Ping;Qin, Yajuan;Chen, Xiaoai;Xu, Fei;Gu, Chunhe;Zhu, Kexue;Zhang, Yanjun;Wu, Gang;Tan, Lehe;Qin, Yajuan;Chen, Xiaoai;Xu, Fei;Gu, Chunhe;Zhu, Kexue;Zhang, Yanjun;Wu, Gang;Tan, Lehe;Zhang, Yanjun;Tan, Lehe
关键词:Flavonols; ?-Glucosidase; Structure-activity relationship; Inhibition mechanisms; Multispectral study; Molecular docking
-
Risk preference, interlinked credit and insurance contract and agricultural innovative technology adoption
作者:Wu, Haixia;Li, Jianping
关键词:Interlinked index insurance and credit; contract; Risk preference; Technological adoption; China
-
The relationship between environmental disclosure and financial performance: mediating effect of economic development and information penetration
作者:Wu, Haixia;Li, Jianping
关键词:Environmental disclosure; financial performance; economic development; information penetration; hierarchical linear modeling
-
Foaming and interfacial properties of desalted duck egg white nanogels after weak enzymatical hydrolyzation
作者:Zhou, Bin;Zhao, Jingyun;Rong, Yujuan;Li, Mengchen;Liang, Hongshan;Li, Bin;Liang, Hongshan;Li, Bin;Sun, Jing
关键词:Desalted duck egg white nanogels; Enzymatic hydrolysis; Foamability; Interfacial properties
-
Design and experiment of an integrated navigation system for a paddy field scouting robot
作者:Tian, Yuyuan;Mai, Zhenpeng;Cai, Yinghu;Yang, Jinpeng;Qi, Long;Qi, Long;Zeng, Zhiwei;Zhao, Bo;Zhu, Xuhua
关键词:Paddy field; Scouting robot; Navigation system; Kalman filter