Results 11 to 20 of about 5,784 (209)

Analysis of Extracting Prior BRDF from MODIS BRDF Data [PDF]

Remote Sensing, 2016
Many previous studies have attempted to extract prior reflectance anisotropy knowledge from the historical MODIS Bidirectional Reflectance Distribution Function (BRDF) product based on land cover or Normalized Difference Vegetation Index (NDVI) data.
Hu Zhang, Ziti Jiao, Yadong Dong, Peng Du, Yang Li, Yi Lian, Tiejun Cui   +6 more
doaj   +4 more sources

BRDF-NeRF: Neural radiance fields with optical satellite images and BRDF modelling [PDF]

International Journal of Applied Earth Observations and Geoinformation
Neural radiance fields (NeRF) have gained prominence as a machine learning technique for representing 3D scenes and estimating the bidirectional reflectance distribution function (BRDF) from multiple images. However, most existing research has focused on
Lulin Zhang, Ewelina Rupnik, Tri Dung Nguyen, Stéphane Jacquemoud, Yann Klinger   +4 more
doaj   +5 more sources

Rational BRDF [PDF]

IEEE Transactions on Visualization and Computer Graphics, 2012
Over the last two decades, much effort has been devoted to accurately measuring Bidirectional Reflectance Distribution Functions (BRDFs) of real-world materials and to use efficiently the resulting data for rendering. Because of their large size, it is difficult to use directly measured BRDFs for real-time applications, and fitting the most ...
Pacanowski, Romain, Salazar-Celis, Oliver, Schlick, Christophe, Granier, Xavier, Poulin, Pierre, Annie, Cuyt   +5 more
openaire   +6 more sources

ALTA: A BRDF Analysis Library. [PDF]

, 2014
In this document, we introduce ALTA, a cross platform generic open-source library for Bidirectional Reflectance Distribution Function (BRDF) analysis. Among others, ALTA permits to estimate BRDF models parameters from measured data, to perform statistical analysis and also to export BRDF data models in a wide variety of formats.
Belcour, Laurent, Barla, Pascal, Pacanowski, Romain   +2 more
core   +7 more sources

Perceived quality of BRDF models [PDF]

Computer Graphics Forum
AbstractMaterial appearance is commonly modeled with the Bidirectional Reflectance Distribution Functions (BRDFs), which need to trade accuracy for complexity and storage cost. To investigate the current practices of BRDF modeling, we collect the first high dynamic range stereoscopic video dataset that captures the perceived quality degradation with ...
Kavoosighafi, Behnaz, Mantiuk, Rafał K., Hajisharif, Saghi, Miandji, Ehsan, Unger, Jonas   +4 more
core   +10 more sources

A Copula‐Based BRDF Model

Computer Graphics Forum, 2010
Abstract In this paper, we introduce a novel approach for modeling surface reflection. We focus on using a family of probability distributions called Archimedean copulas as BRDF models. The Archimedean representation has an attractive property in that the multivariate distributions are characterized by their marginal distributions through a single ...
Ozturk, Aydin, Kurt, Murat, Bilgili, Ahmet   +2 more
openaire   +5 more sources

High-Resolution Infrared Reflectance Distribution Measurement Under Variable Temperature Conditions [PDF]

Sensors
The bidirectional reflectance distribution function (BRDF) can effectively characterize the reflectance properties of a target, which can be used to correct infrared remote sensing data and improve the accuracy of remote sensing measurements.
Yujian Yang, Yao Li, Ang Huang, Fanshan Meng, Jinghui Wang, Wei Dong, Yiwen Li   +6 more
doaj   +2 more sources

Dynamic Display of BRDFs [PDF]

Computer Graphics Forum, 2011
AbstractThis paper deals with the challenge of physically displaying reflectance, i.e., the appearance of a surface and its variation with the observer position and the illuminating environment. This is commonly described by the bidirectional reflectance distribution function (BRDF).
Hullin, Matthias B., Lensch, Hendrik P. A., Raskar, Ramesh, Seidel, Hans-Peter, Ihrke, Ivo   +4 more
openaire   +4 more sources

BRDF Representation and Acquisition [PDF]

Computer 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, Giuseppe Claudio Guarnera, Abhijeet Ghosh, Cornelia Denk, Mashhuda Glencross   +4 more
openaire   +7 more sources

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

Atmospheric Measurement Techniques, 2014
We investigated the effect of surface reflectance anisotropy, bidirectional reflectance distribution function (BRDF), on satellite retrievals of tropospheric NO2.
K. Noguchi, A. Richter, V. Rozanov, A. Rozanov, J. P. Burrows, H. Irie, K. Kita   +6 more
doaj   +1 more source