Results 81 to 90 of about 4,498 (215)

Real-Time Linear BRDF MIP-Mapping

open access: yes, 2017
We present a new technique to jointly MIP-map BRDF and normal maps. Starting with generating an instant BRDF map, our technique builds its MIP-mapped versions based on a highly efficient algorithm that interpolates von Mises-Fisher (vMF) distributions ...
Zhao, Shuang   +3 more
core   +1 more source

Adaptive slices for acquisition of anisotropic BRDF

open access: yesComputational Visual Media, 2018
BRDF continues to be used as a fundamental tool for representing material appearance in computer graphics. In this paper we present a practical adaptive method for acquisition of anisotropic BRDF, based on sparse adaptive measurement of the complete four-
Radomír Vávra, Jiří Filip
doaj   +1 more source

Evaluation of Medium Spatial Resolution BRDF-Adjustment Techniques Using Multi-Angular SPOT4 (Take5) Acquisitions

open access: yesRemote Sensing, 2015
High-resolution sensor Surface Reflectance (SR) data are affected by surface anisotropy but are difficult to adjust because of the low temporal frequency of the acquisitions and the low angular sampling.
Martin Claverie   +6 more
doaj   +1 more source

BRDF workshop

open access: yes, 2012
This thesis develops an application for interactive experiments with BRDF functions. Arbitrary BRDF function may be specified with an analytic formula, including arbitrary number of parameters. A simple scene is displayed, using specified BRDF.
Matějka, Jiří
core  

Mapping fire affected areas in northern Western Australia - towards an automatic approach

open access: yes, 2004
Wildfires across northern Australia are a growing problem with more than 2.5 million hectares being burnt each year. Accordingly, remote sensing has been used as a tool to routinely monitor and map fire histories.
Candy, Katherine
core  

Efficient polarimetric BRDF model

open access: yesOptics Express, 2015
The purpose of the present manuscript is to present a polarimetric bidirectional reflectance distribution function (BRDF) model suitable for hyperspectral and polarimetric signature modelling. The model is based on a further development of a previously published four-parameter model that has been generalized in order to account for different types of ...
Ingmar G E, Renhorn   +2 more
openaire   +2 more sources

Improving Soil Moisture Retrieval by Combining MODIS BRDF and CYGNSS Data

open access: yesJournal of Remote Sensing
Soil moisture (SM) retrieval methods based on machine learning from the Cyclone Global Navigation Satellite System (CYGNSS) data primarily rely on Normalized Difference Vegetation Index (NDVI) to characterize vegetation information.
Sizhe Chen   +8 more
doaj   +1 more source

Wavelet-Based Modelling of Spectral BRDF Data

open access: yes, 2004
International audienceThe Bidirectional Reflectance Distribution Function (BRDF) is an important surface property, and is commonly used to describe reflected light patterns.
Boucher, Yannick   +2 more
core   +1 more source

Java BRDF viewer

open access: yes, 2002
A Bi-directional Reflection Distribution Function, BRDF, is a mathematical model used to reproduce a realistic reflection in computer generated graphics. To study the effects of BRDFs, one uses a BRDF viewer.
Chong, Randy Christopher
core  

An Overview of BRDF Models [PDF]

open access: yes, 2012
This paper is focused on the Bidirectional Reflectance Distribution Function (BRDF) in the context of algorithms for computational production of realistic synthetic images.
Montes Soldado, Rosana   +2 more
core  

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