Crop Yield Prediction Using Multitemporal UAV Data and Spatio-Temporal Deep Learning Models

被引:73
|
作者
Nevavuori, Petteri [1 ]
Narra, Nathaniel [2 ]
Linna, Petri [2 ]
Lipping, Tarmo [2 ]
机构
[1] Mtech Digital Solut Oy, Vantaa 01301, Finland
[2] Tampere Univ, Fac Informat Technol & Commun Sci, Tampere 33014, Finland
关键词
crop yield prediction; UAV; spatio-temporal modelling; time series; deep learning; cnn-lstm; convolutional lstm; 3d-cnn; NEURAL-NETWORKS; MULTISOURCE;
D O I
10.3390/rs12234000
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Unmanned aerial vehicle (UAV) based remote sensing is gaining momentum worldwide in a variety of agricultural and environmental monitoring and modelling applications. At the same time, the increasing availability of yield monitoring devices in harvesters enables input-target mapping of in-season RGB and crop yield data in a resolution otherwise unattainable by openly availabe satellite sensor systems. Using time series UAV RGB and weather data collected from nine crop fields in Pori, Finland, we evaluated the feasibility of spatio-temporal deep learning architectures in crop yield time series modelling and prediction with RGB time series data. Using Convolutional Neural Networks (CNN) and Long-Short Term Memory (LSTM) networks as spatial and temporal base architectures, we developed and trained CNN-LSTM, convolutional LSTM and 3D-CNN architectures with full 15 week image frame sequences from the whole growing season of 2018. The best performing architecture, the 3D-CNN, was then evaluated with several shorter frame sequence configurations from the beginning of the season. With 3D-CNN, we were able to achieve 218.9 kg/ha mean absolute error (MAE) and 5.51% mean absolute percentage error (MAPE) performance with full length sequences. The best shorter length sequence performance with the same model was 292.8 kg/ha MAE and 7.17% MAPE with four weekly frames from the beginning of the season.
引用
收藏
页码:1 / 18
页数:18
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