Results 1 to 10 of about 3,439,931 (317)

Structural and Spectral Analysis of Cereal Canopy Reflectance and Reflectance Anisotropy [PDF]

Remote Sensing, 2018
The monitoring of agricultural areas is one of the most important topics for remote sensing data analysis, especially to assist food security in the future.
Theres Kuester, Daniel Spengler
doaj   +8 more sources

Reflectance Anisotropy from MODIS for Albedo Retrieval from a Single Directional Reflectance

Remote Sensing, 2022
Surface reflectance anisotropy and insufficient multi-angular observations are the main challenges in albedo estimation from satellite observations.
Hu Zhang, Mengzhuo Zhao, Ziti Jiao, Yi Lian, Lei Chen, Lei Cui, Xiaoning Zhang, Yan Liu, Yadong Dong, Da Qian, Yiting Wang, Juan Li, Tiejun Cui   +12 more
doaj   +4 more sources

Hyperspectral Reflectance Anisotropy Measurements Using a Pushbroom Spectrometer on an Unmanned Aerial Vehicle—Results for Barley, Winter Wheat, and Potato

Remote Sensing, 2016
Reflectance anisotropy is a signal that contains information on the optical and structural properties of a surface and can be studied by performing multi-angular reflectance measurements that are often done using cumbersome goniometric measurements.
Peter P. J. Roosjen, Juha M. Suomalainen, Harm M. Bartholomeus, Jan G. P. W. Clevers   +3 more
doaj   +5 more sources

Quantifying the Reflectance Anisotropy Effect on Albedo Retrieval from Remotely Sensed Observations Using Archetypal BRDFs

Remote Sensing, 2018
The reflectance anisotropy effect on albedo retrieval was evaluated using the Moderate Resolution Imaging Spectroradiometer (MODIS) bidirectional reflectance distribution functions (BRDFs) product, and archetypal BRDFs.
Hu Zhang, Ziti Jiao, Lei Chen, Yadong Dong, Xiaoning Zhang, Yi Lian, Da Qian, Tiejun Cui   +7 more
doaj   +3 more sources

Extending the GOSAILT Model to Simulate Sparse Woodland Bi-Directional Reflectance with Soil Reflectance Anisotropy Consideration

Remote Sensing, 2022
Anisotropic canopy reflectance plays a crucial role in estimating vegetation biophysical parameters, whereas soil reflectance anisotropy affects canopy reflectance.
Juan Cheng, Jianguang Wen, Qing Xiao, Shengbiao Wu, Dalei Hao, Qinhuo Liu   +5 more
doaj   +3 more sources

Mapping Reflectance Anisotropy of a Potato Canopy Using Aerial Images Acquired with an Unmanned Aerial Vehicle

Remote Sensing, 2017
Viewing and illumination geometry has a strong influence on optical measurements of natural surfaces due to their anisotropic reflectance properties.
Peter P. J. Roosjen, Juha M. Suomalainen, Harm M. Bartholomeus, Lammert Kooistra, Jan G. P. W. Clevers   +4 more
doaj   +4 more sources

Characterizing reflectance anisotropy of background soil in open-canopy plantations using UAV-based multiangular images

ISPRS Journal of Photogrammetry and Remote Sensing, 2021
The canopy bidirectional reflectance distribution function (BRDF) plays a pivotal role in estimating the biophysical parameters of plants, whereas soil background anisotropy creates challenges for their retrieval.
Linyuan Li, Xihan Mu, Jianbo Qi
exaly   +3 more sources

A Laboratory Goniometer System for Measuring Reflectance and Emittance Anisotropy [PDF]

Sensors, 2012
In this paper, a laboratory goniometer system for performing multi-angular measurements under controlled illumination conditions is described. A commercially available robotic arm enables the acquisition of a large number of measurements over the full ...
Arjan de Jong, Henk Jalink, Rob van der Schoor, Gabriela Schaepman-Strub, Michael E. Schaepman, Peter P. J. Roosjen, Jan G. P. W. Clevers, Harm M. Bartholomeus   +7 more
doaj   +8 more sources

High Angular Resolution Measurements of the Anisotropy of Reflectance of Sea Ice and Snow

Earth and Space Science, 2018
International audienceWe introduce a new method to determine the anisotropy of reflectance of sea ice and snow at spatial scales from 1 m2 to 80 m2 using a multispectral circular fish-eye radiance camera (CE600).
S Marty, Edouard Leymarie, David Antoine   +2 more
exaly   +3 more sources

Evaluation of BRDF Archetypes for Representing Surface Reflectance Anisotropy Using MODIS BRDF Data

Remote Sensing, 2015
Bidirectional reflectance distribution function (BRDF) archetypes extracted from the Moderate Resolution Imaging Spectroradiometer (MODIS) BRDF/Albedo product over the global Earth Observing System Land Validation Core Sites can be used to simplify BRDF
Hu Zhang, Ziti Jiao, Yadong Dong, Xiaowen Li   +3 more
doaj   +3 more sources