Results 11 to 20 of about 274,834 (357)
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022 Earth's surface reflectance is an important parameter affecting ultraviolet (UV) and visible (VIS) radiance calculations at the top of the atmosphere because many UV and VIS channels can acquire information about the surface and atmosphere.
Quanhua Liu +7 more
doaj +1 more source
Implementing a Dual-Spectrometer Approach for Improved Surface Reflectance Estimation
Remote Sensing, 2023 Surface reflectance measurement is an integral part of the vicarious calibration of satellite sensors and the validation of satellite-derived top-of-atmosphere (TOA) and surface reflectance products.
Mahesh Shrestha +6 more
doaj +1 more source
Remote Sensing, 2022 Several global leaf area index (LAI) products were generated using neural networks, but the training dataset for the neural networks was sensor specific, and the construction of the training dataset was time consuming.
Juan Li +3 more
doaj +1 more source
Remote Sensing, 2015 Land-surface reflectance, estimated from satellite observations through atmospheric corrections, is an essential parameter for further retrieval of various high level land-surface parameters, such as leaf area index (LAI), fraction of absorbed ...
Zhiqiang Xiao +3 more
doaj +1 more source
Lightdrum—Portable Light Stage for Accurate BTF Measurement on Site
Sensors, 2017 We propose a miniaturised light stage for measuring the bidirectional reflectance distribution function (BRDF) and the bidirectional texture function (BTF) of surfaces on site in real world application scenarios. The main principle of our lightweight BTF
Vlastimil Havran +4 more
doaj +1 more source
Position Information From Reflecting Surfaces
IEEE Wireless Communications Letters, 2021 In the context of positioning an agent with a single-anchor, this contribution focuses on the Fisher information about the position, orientation and clock offset of the agent provided by single-bounce reflections. The availability of prior knowledge of the agent’s environment is taken into account via a prior distribution of the position of virtual ...
Anastasios Kakkavas +5 more
openaire +2 more sources
A Hyperspectral Bidirectional Reflectance Model for Land Surface
Sensors, 2020 A hyperspectral bidirectional reflectance (HSBR) model for land surface has been developed in this work. The HSBR model includes a very diverse land surface bidirectional reflectance distribution function (BRDF) database with ~40,000 spectra.
Qiguang Yang, Xu Liu, Wan Wu
doaj +1 more source
Communications in Science and Technology, 2019 Atmospheric correction has been challenging task in digital image processing. It requires several atmospheric parameters in order to obtain accurate surface reflectance of objects within the image scene.
Abdul Basith +3 more
doaj +1 more source
Remote Sensing, 2020 Snow surface spectral reflectance is very important in the Earth’s climate system. Traditional land surface models with parameterized schemes can simulate broadband snow surface albedo but cannot accurately simulate snow surface spectral reflectance with
Donghang Shao +4 more
doaj +1 more source
Evaluation of the AVHRR surface reflectance long term data record between 1984 and 2011
International Journal of Applied Earth Observations and Geoinformation, 2021 The long-term data record (LTDR) from the Advanced Very High-Resolution Radiometer (AVHRR) provides daily surface reflectance with global coverage from the 1980s to present day, making it a unique source of information for the study of land surface ...
Andres Santamaria-Artigas +4 more
doaj +1 more source