Results 11 to 20 of about 5,611 (211)
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 +2 more
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Perceived quality of BRDF models [PDF]
Computer Graphics ForumAbstractMaterial 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 +4 more
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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 +2 more
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Importance Sampling BRDF Derivatives
ACM Transactions on GraphicsWe propose a set of techniques to efficiently importance sample the derivatives of a wide range of Bidirectional Reflectance Distribution Function (BRDF) models. In differentiable rendering, BRDFs are replaced by their differential BRDF counterparts, which are real-valued and can have negative values. This leads to a new source of variance arising from
Yash Belhe +4 more
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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. +4 more
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Remote Sensing, 2020 Forest three-dimensional (3-D) structure, in the vertical dimension, consists of at least two components, including overstory and a forest background matrix (i.e., shrubs, grass, and bare earth).
Xiaofei Wang +5 more
doaj +1 more source
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 +4 more
openaire +7 more sources
Sparse BRDF Approximation using Compressive Sensing [PDF]
, 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, Zupancic, Benoît
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IMAGE-BASED BRDF MEASUREMENT [PDF]
ISPRS 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
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The Classification of Reflectance Anisotropy and Its Application in Albedo Retrieval
Atmosphere, 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
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