Results 1 to 10 of about 317,264 (286)

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   +7 more sources

Chiral Porphyrin Assemblies Investigated by a Modified Reflectance Anisotropy Spectroscopy Spectrometer [PDF]

Molecules, 2023
Reflectance anisotropy spectroscopy (RAS) has been largely used to investigate organic compounds: Langmuir–Blodgett and Langmuir–Schaeffer layers, the organic molecular beam epitaxy growth in situ and in real time, thin and ultrathin organic films ...
Ilaria Tomei, Beatrice Bonanni, Anna Sgarlata, Massimo Fanfoni, Roberto Martini, Ilaria Di Filippo, Gabriele Magna, Manuela Stefanelli, Donato Monti, Roberto Paolesse, Claudio Goletti   +10 more
doaj   +4 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

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

Review: An Optical Surface Probe by Reflectance Anisotropy Spectroscopy [PDF]

Hittite Journal of Science and Engineering, 2019
Rface and interface information. RAS measures the difference in reflectance of light eflectance anisotropy spectroscopy RAS is an optical technique to produce surlinearly polarised along two orthogonal axes in the surface at near normal incidence as ...
Orhan Zeybek
doaj   +4 more sources

The Classification of Reflectance Anisotropy and Its Application in Albedo Retrieval

Atmosphere, 2022
The land surface albedo reflects the ability of the surface to reflect solar radiation and is a critical physical variable in the study of the Earth’s energy budget and global climate change.
Mengzhuo Zhao, Hu Zhang, Cancan Chen, Chenxia Wang, Yan Liu, Juan Li, Tiejun Cui   +6 more
doaj   +3 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   +3 more sources

Polarimeters for the Detection of Anisotropy from Reflectance

Micromachines
Polarimetry is used to determine the Stokes parameters of a laser beam. Once all four S0,1,2,3 parameters are determined, the state of polarisation is established.
Shuji Kamegaki, Zahra Khajehsaeidimahabadi, Meguya Ryu, Nguyen Hoai An Le, Soon Hock Ng, Ričardas Buividas, Gediminas Seniutinas, Vijayakumar Anand, Saulius Juodkazis, Junko Morikawa   +9 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   +3 more sources

Circular Dichroism Reflectance Anisotropy of Chiral Atomically Thin Films

Chemosensors
Recently, a technical modification of a Reflectance Anisotropy Spectroscopy (RAS) spectrometer has been proposed to investigate the circular dichroism (CD) of samples instead of the normally studied linear dichroism. CD-RAS measures the anisotropy of the
Ilaria Tomei, Filippo Pierucci, Beatrice Bonanni, Anna Sgarlata, Massimo Fanfoni, Seong-Jun Yang, Cheol-Joo Kim, Claudio Goletti   +7 more
doaj   +3 more sources