Results 41 to 50 of about 77,186 (166)

Human visual cortical responses to specular and matte motion flows

open access: yesFrontiers in Human Neuroscience, 2015
Determining the compositional properties of surfaces in the environment is an important visual capacity. One such property is specular reflectance, which encompasses the range from matte to shiny surfaces. Visual estimation of specular reflectance can be
Tae-Eui eKam   +9 more
doaj   +1 more source

Forest Non-Lambertian Modeling Error Correction Based on DART

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
As a response to the Lambertian assumption modeling error in the inversion of surface reflectance, a discrete anisotropic radiative transfer model (DART) is employed to model surface scenes in a variety of terrains and vegetation situations.
Dacheng Li   +4 more
doaj   +1 more source

Retrieval of pseudo-BRDF-adjusted surface reflectance at 440 nm from the Geostationary Environmental Monitoring Spectrometer (GEMS) [PDF]

open access: yesAtmospheric Measurement Techniques
In satellite remote sensing applications, enhancing the precision of level 2 (L2) algorithms relies heavily on the accurate estimation of the surface reflectance across the ultraviolet (UV) to visible (VIS) spectrum.
S. Sim   +9 more
doaj   +1 more source

Rendering Deformable Surface Reflectance Fields [PDF]

open access: yesIEEE Transactions on Visualization and Computer Graphics, 2005
Animation of photorealistic computer graphics models is an important goal for many applications. Image-based modeling has emerged as a promising approach to capture and visualize real-world objects. Animating image-based models, however, is still a largely unsolved problem.
Tim Weyrich   +2 more
openaire   +5 more sources

A SIMPLE AND EFFECTIVE RETRIEVAL OF LAND SURFACE TEMPERATURE USING A NEW REFLECTANCE BASED EMISSIVITY ESTIMATION TECHNIQUE [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
Emissivity is a significant factor in determining land surface temperature (LST) retrieved from the thermal infrared (TIR) satellite images. A new simplified method (reflectance method) for emissivity correction was developed in this study while ...
Y. Nithiyanandam, J. E. Nichol
doaj   +1 more source

Landsat-8/9 Atmospheric Correction Reliability Using Scene Statistics

open access: yesRemote Sensing
Landsat data correction using the Land Surface Reflectance Code (LaSRC) has been proposed as the basis for the atmospheric correction of smallsats. While atmospheric correction can enhance smallsat data, the Landsat/LaSRC pathway delays output and may ...
David Groeneveld   +2 more
doaj   +1 more source

Reconstruction of High-Temporal- and High-Spatial-Resolution Reflectance Datasets Using Difference Construction and Bayesian Unmixing

open access: yesRemote Sensing, 2020
High-temporal- and high-spatial-resolution reflectance datasets play a vital role in monitoring dynamic changes at the Earth’s land surface. So far, many sensors have been designed with a trade-off between swath width and pixel size; thus, it is ...
Lei Yang   +4 more
doaj   +1 more source

Directional Applicability Analysis of Albedo Retrieval Using Prior BRDF Knowledge

open access: yesRemote Sensing
Surface albedo measures the proportion of incoming solar radiation reflected by the Earth’s surface. Accurate albedo retrieval from remote sensing data usually requires sufficient multi-angular observations to account for the surface reflectance ...
Hu Zhang   +9 more
doaj   +1 more source

Evaluating spectral diversity approaches for tree species diversity mapping in hemi-boreal forests using Sentinel-2 and biodivMapR [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Spectral diversity mapping is increasingly used to estimate biodiversity from satellite imagery, but the effect of input feature type remains poorly tested.
A. Biju   +6 more
doaj   +1 more source

Retrieval of Aerosol Optical Depth in the Arid or Semiarid Region of Northern Xinjiang, China

open access: yesRemote Sensing, 2018
Satellite remote sensing has been widely used to retrieve aerosol optical depth (AOD), which is an indicator of air quality as well as radiative forcing.
Xinpeng Tian   +3 more
doaj   +1 more source

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