An unmanned aerial vehicle (UAV) can be configured for crop height estimation. In some examples, the UAV includes an aerial propulsion system, a laser scanner configured to face downwards while the UAV is in flight, and a control system. The laser scanner is configured to scan through a two...
In agriculture, information about the spatial distribution of crop height is valuable for applications such as biomass and yield estimation, or increasing field work efficiency in terms of fertilizing, applying pesticides, irrigation, etc. Established methods for capturing crop height often comprise restri...
Estimation of Rice Crop Height From X- and C-Band PolSAR by Metamodel-Based Optimization Rice crops are important in global food economy and are monitored by precise agricultural methods, in which crop morphology in high spatial resolution beco... O Yuzugullu,E Erten,I Hajnsek - 《IEEE Journ...
CoherenceintheEstimationof AgriculturalCropHeights MarcusE.Engdahl,MauriceBorgeaud,SeniorMember,IEEE,andMichaelRast Abstract—Inthisstudy,therelationshipbetweenERS-1/2SAR Tandeminterferometriccoherenceandtheheightofsugarbeet, potato,andwinterwheatisinvestigatedusingmeasurementsof ...
Comparison with experimental results indicated that incorporating crop height into the models improved the accuracy of AGB estimations (the average AGB is 6.45 t/ha). The estimation accuracy of single-parameter models was low (crop height only: R2 = 0.50, RMSE = 1.62 t/ha, MAE = 1.24 t/ha...
During a whole growing season, the evolution of the displacement height, d , and roughness length, z 0 , of a maize crop has been estimated by a measureme... AFG Jacobs,JH Boxel - 《Boundary Layer Meteorology》 被引量: 26发表: 1988年 Parameter estimation for crop growth model using ev...
The trees of the outlier species had the smallest diameter and height, presumably resulting in false-positive errors. The model could be easily generalized for other species that were not tested in this study by adjusting the model parameters to the size of the unit used in the visual survey....
For the net GHG emissions (kg CO2-eq ha–1) estimation, we considered indirect GHG emissions of crop inputs from a life cycle assessment, direct N2O and CH4emissions from the soil, and changes in soil carbon stock from 0–90 cm during the 6-year experiment. The system boundary in the...
The capacity of LiDAR and Unmanned Aerial Vehicles (UAVs) to provide plant height estimates as a high-throughput plant phenotyping trait was explored. An e... M Simon,B Fred,DS Beno?T,... - 《Frontiers in Plant Science》 被引量: 22发表: 2017年 Estimation of vegetation indices for high...
MAIZE CROP YIELD ESTIMATION WITH REMOTE SENSING AND EMPIRICAL MODELS The abstract should appear at the top of the left-hand column Crop yield estimation are topics of interest in Latin-American countries, for farmers and gov... Fernandez-Ordonez,YM,Soria-Ruiz - International Geoscience & Remote ...