Results 21 to 30 of about 4,498 (215)

BRDF Representation and Acquisition [PDF]

open access: yesComputer Graphics Forum, 2016
AbstractPhotorealistic rendering of real world environments is important in a range of different areas; including Visual Special effects, Interior/Exterior Modelling, Architectural Modelling, Cultural Heritage, Computer Games and Automotive Design.Currently, rendering systems are able to produce photorealistic simulations of the appearance of many real‐
Dar'ya Guarnera   +4 more
openaire   +6 more sources

IMAGE-BASED BRDF MEASUREMENT [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022
One of the most challenging effects of remote sensing is landcover materials' Bidirectional Reflectance Distribution Function (BRDF). A wide range of approaches and measuring methods address the BRDF in various studies.
S. Weil-Zattelman, F. Kizel
doaj   +1 more source

The Classification of Reflectance Anisotropy and Its Application in Albedo Retrieval

open access: yesAtmosphere, 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   +6 more
doaj   +1 more source

Effect of surface BRDF of various land cover types on geostationary observations of tropospheric NO2 [PDF]

open access: yesAtmospheric Measurement Techniques, 2014
We investigated the effect of surface reflectance anisotropy, bidirectional reflectance distribution function (BRDF), on satellite retrievals of tropospheric NO2.
K. Noguchi   +6 more
doaj   +1 more source

Estimating Forest Canopy Height Using MODIS BRDF Data Emphasizing Typical-Angle Reflectances

open access: yesRemote Sensing, 2019
Forest-canopy height is an important parameter for the estimation of forest biomass and terrestrial carbon flux and climate-change research at regional and global scales.
Lei Cui   +9 more
doaj   +1 more source

BRDF of human skin in the visible spectrum [PDF]

open access: yes, 2017
© Emerald Publishing Limited. Purpose - Significant research has been carried out in terms of development of new bidirectional reflectance distribution function (BRDF) instruments; however, there is still little research available regarding spectral BRDF
Smith, Lyndon   +7 more
core   +1 more source

Sparse BRDF Approximation using Compressive Sensing [PDF]

open access: yes, 2013
International audienceWe experiment a BRDF acquisiton method from a single picture, knowing geometry and illumination. To tackle such a severely underconstrained problem, we express the BRDF in a high dimensional basis, and perform the reconstruction ...
Soler, Cyril   +3 more
core   +2 more sources

Evaluating the Performance of Satellite-Derived Vegetation Indices for Estimating Gross Primary Productivity Using FLUXNET Observations across the Globe

open access: yesRemote Sensing, 2019
Satellite-derived vegetation indices (VIs) have been widely used to approximate or estimate gross primary productivity (GPP). However, it remains unclear how the VI-GPP relationship varies with indices, biomes, timescales, and the bidirectional ...
Xiaojuan Huang   +2 more
doaj   +1 more source

BRDF LABORATORY MEASUREMENTS USING A CAMERA-AIDED SPECTRORADIOMETER [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022
Numerous natural surfaces observed using Remote Sensing do not reflect light as Lambertian surfaces. Instead, their reflection is highly dependent on two main directions: the direction of the light source and the observation viewing angle, which ...
E. Roitberg   +3 more
doaj   +1 more source

Characterizing Land Surface Anisotropic Reflectance over Rugged Terrain: A Review of Concepts and Recent Developments

open access: yesRemote Sensing, 2018
Rugged terrain, including mountains, hills, and some high lands are typical land surfaces around the world. As a physical parameter for characterizing the anisotropic reflectance of the land surface, the importance of the bidirectional reflectance ...
Jianguang Wen   +7 more
doaj   +1 more source

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