Results 11 to 20 of about 77,186 (166)
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
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On the Position of Intelligent Reflecting Surfaces
2021 Joint European Conference on Networks and Communications & 6G Summit (EuCNC/6G Summit), 2021 We study the positional impact of an intelligent reflecting surface (IRS) on the achievable rate for single and multiple antenna systems. We show that in IRS-aided single antenna systems, it is always best to place the IRS as close as possible to the transmitter or receiver since the large-scale fading for IRS-reflected links is the main factor that ...
Emad Ibrahim +2 more
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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
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A Bayesian Reflection on Surfaces [PDF]
Entropy, 1999 The topic of this paper is a novel Bayesian continuous-basis field representation and inference framework. Within this paper several problems are solved: The maximally informative inference of continuous-basis fields, that is where the basis for the field is itself a continuous object and not representable in a finite manner; the tradeoff between ...
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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
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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
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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
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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
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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
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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
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