Results 1 to 10 of about 1,034,839 (324)

Remote and Proximal Sensing-Derived Spectral Indices and Biophysical Variables for Spatial Variation Determination in Vineyards

Agronomy, 2021
Remote-sensing measurements are crucial for smart-farming applications, crop monitoring, and yield forecasting, especially in fields characterized by high heterogeneity.
Nicoleta Darra, Emmanouil Psomiadis, Aikaterini Kasimati, Achilleas Anastasiou, Evangelos Anastasiou, Spyros Fountas   +5 more
doaj   +5 more sources

Biophysical Indices Impact on Cognitive Building Detection [PDF]

E3S Web of Conferences
Accurate detection of buildings from satellite imagery presents a significant challenge in complex urban environments where traditional spectral and geometric approaches often fail to distinguish built structures from surrounding vegetation and natural ...
Dardouri Wahiba, Ben Achhab Nizar, Ezzaher Fatima Ezahrae, Naciri Hafssa, Raissouni Naoufal   +4 more
doaj   +3 more sources

A Comprehensive Comparison of Machine Learning and Feature Selection Methods for Maize Biomass Estimation Using Sentinel-1 SAR, Sentinel-2 Vegetation Indices, and Biophysical Variables

Remote Sensing, 2022
Rapid and accurate estimation of maize biomass is critical for predicting crop productivity. The launched Sentinel-1 (S-1) synthetic aperture radar (SAR) and Sentinel-2 (S-2) missions offer a new opportunity to map biomass.
Chi Xu, Yanling Ding, Xingming Zheng, Yeqiao Wang, Rui Zhang, Hongyan Zhang, Zewen Dai, Qiaoyun Xie   +7 more
doaj   +4 more sources

Viewing Geometry Sensitivity of Commonly Used Vegetation Indices towards the Estimation of Biophysical Variables in Orchards

Journal of Imaging, 2016
Stress-related biophysical variables of capital intensive orchard crops can be estimated with proxies via spectral vegetation indices from off-nadir viewing satellite imagery.
Jonathan Van Beek, Laurent Tits, Ben Somers   +2 more
exaly   +3 more sources

Estimation of Biophysical Parameters of Forage Cactus Under Different Agricultural Systems Through Vegetation Indices and Machine Learning Using RGB Images Acquired with Unmanned Aerial Vehicles

Agriculture
The objective of this study was to correlate the biophysical parameters of forage cactus with visible vegetation indices obtained by unmanned aerial vehicles (UAVs) and predict them with machine learning in different agricultural systems.
Gabriel Italo Novaes da Silva, Alexandre Maniçoba da Rosa Ferraz Jardim, Wagner Martins dos Santos, Alan Cézar Bezerra, Elisiane Alba, Marcos Vinícius da Silva, Jhon Lennon Bezerra da Silva, Luciana Sandra Bastos de Souza, Gabriel Thales Barboza Marinho, Abelardo Antônio de Assunção Montenegro, Thieres George Freire da Silva   +10 more
doaj   +3 more sources

Evaluation of Melasma Treatment Effectiveness by Skin Biophysical Indices

Bulletin of Science and Practice, 2021
This article presents an assessment of the effectiveness of treatment of melasma according to the biophysical indicators of skin 176 patients who applied to the DIVA EFFECT private cosmetology clinic in Bishkek (Kyrgyzstan) in 2018–2020.

semanticscholar   +2 more sources

Combinational Biophysical Composition Index (CBCI) for Effective Mapping Biophysical Composition in Urban Areas

IEEE Access, 2018
The current spectral indices for estimating urban biophysical compositions still have several limitations. First, most of those indices can highlight one urban biophysical composition, such as impervious surfaces, vegetation, or water.
Shaohua Zhang, Kun Yang, Mingchan Li, Yuling Ma, Mengzhu Sun   +4 more
doaj   +3 more sources

Retrieval of Evapotranspiration from Sentinel-2: Comparison of Vegetation Indices, Semi-Empirical Models and SNAP Biophysical Processor Approach

Agronomy, 2019
Remote sensing evapotranspiration estimation over agricultural areas is increasingly used for irrigation management during the crop growing cycle. Different methodologies based on remote sensing have emerged for the leaf area index (LAI) and the canopy ...
Nieves Pasqualotto, Guido D’Urso, Salvatore Falanga Bolognesi   +2 more
exaly   +2 more sources

Seasonality of Biophysical Parameters in Extreme Years of Precipitation in Pernambuco: Relations, Regionalities, and Variability

Atmosphere, 2023
This study analyzed the seasonality of biophysical parameters in the extreme years of precipitation and the relationship with the monthly precipitation of the state of Pernambuco at the regional level (Pernambuco) and homogeneous precipitation zones ...
Alan Cézar Bezerra, Jhon Lennon Bezerra da Silva, Douglas Alberto de Oliveira Silva, Cristina Rodrigues Nascimento, Eberson Pessoa Ribeiro, Josiclêda Domiciano Galvincio, Marcos Vinícius da Silva, Henrique Fonseca Elias de Oliveira, Márcio Mesquita, José Francisco de Oliveira-Júnior, Alexsandro Claudio dos Santos Almeida, Pabrício Marcos Oliveira Lopes, Geber Barbosa de Albuquerque Moura   +12 more
doaj   +2 more sources

Evaluation of Coffee Plants Transplanted to an Area with Surface and Deep Liming Based on Multispectral Indices Acquired Using Unmanned Aerial Vehicles

Agronomy, 2023
The use of new technologies to monitor and evaluate the management of coffee crops allowed for a significant increase in productivity. Precision coffee farming has leveraged the development of this commodity by using remote sensing and Unmanned Aerial ...
Rafael Alexandre Pena Barata, Gabriel Araújo e Silva Ferraz, Nicole Lopes Bento, Daniel Veiga Soares, Lucas Santos Santana, Diego Bedin Marin, Drucylla Guerra Mattos, Felipe Schwerz, Giuseppe Rossi, Leonardo Conti, Gianluca Bambi   +10 more
doaj   +2 more sources