ArticleSensors (Basel, Switzerland)2021
Estimation of Leaf Nitrogen Content in Wheat Based on Fusion of Spectral Features and Deep Features from Near Infrared Hyperspectral Imagery.
Article in Sensors (Basel, Switzerland), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 37 citations in OpenAlex.
- Drought stress identification of tomato plant using multi-features of hyperspectral imaging and subsample fusion.Frontiers in plant science · 2023Article
- Analysis of the Application Efficiency of TensorFlow and PyTorch in Convolutional Neural Network.Sensors (Basel, Switzerland) · 2022Article
- Hyperspectral Characteristics of an Individual Leaf of Wheat Grown under Nitrogen Gradient.Plants (Basel, Switzerland) · 2021Article
- Accurate Wheat Lodging Extraction from Multi-Channel UAV Images Using a Lightweight Network Model.Sensors (Basel, Switzerland) · 2021Article
- Machine Learning in Agriculture: A Comprehensive Updated Review.Sensors (Basel, Switzerland) · 2021Review
- IndoorPlant: A Model for Intelligent Services in Indoor Agriculture Based on Context Histories.Sensors (Basel, Switzerland) · 2021Article
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
Abstract
Nitrogen is an important indicator for monitoring wheat growth. The rapid development and wide application of non-destructive detection provide many approaches for estimating leaf nitrogen content (LNC) in wheat. Previous studies have shown that better results have been obtained in the estimation of LNC in wheat based on spectral features. However, the lack of automatically extracted features leads to poor universality of the estimation model. Therefore, a feature fusion method for estimating LNC in wheat by combining spectral features with deep features (spatial features) was proposed. The deep features were automatically obtained with a convolutional neural network model based on the PyTorch framework. The spectral features were obtained using spectral information including position features (PFs) and vegetation indices (VIs). Different models based on feature combination for evaluating LNC in wheat were constructed: partial least squares regression (PLS), gradient boosting decision tree (GBDT), and support vector regression (SVR). The results indicate that the model based on the fusion feature from near-ground hyperspectral imagery has good estimation effect. In particular, the estimation accuracy of the GBDT model is the best (R
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