Analyzing and Predicting Anisotropic Effects of BRDFs

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985556%3A_____%2F15%3A00448393" target="_blank" >RIV/67985556:_____/15:00448393 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1145/2804408.2804419" target="_blank" >http://dx.doi.org/10.1145/2804408.2804419</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1145/2804408.2804419" target="_blank" >10.1145/2804408.2804419</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Analyzing and Predicting Anisotropic Effects of BRDFs

Popis výsledku v původním jazyce

The majority of the materials we encounter in the real-world have variable reflectance when rotated along a surface normal. This view and illumination azimuthally-variable behavior is known as visual anisotropy. Such behavior can be represented by a four-dimensional anisotropic BRDF that characterizes the anisotropic appearance of homogeneous materials. Unfortunately, most past research has been devoted to simplistic three dimensional isotropic BRDFs. In this paper, we analyze and categorize basic typesof BRDF anisotropy, use a psychophysical study to assess at which conditions can isotropic appearance be used without loss of details in material appearance. To this end, we tested the human impression of material anisotropy on various shapes and undertwo illuminations. We conclude that subjects sensitivity to anisotropy declines with increasing complexity of 3D geometry and increasing uniformity of illumination environment. Finally, we derive and perceptually validate a computationall

Název v anglickém jazyce

Analyzing and Predicting Anisotropic Effects of BRDFs

Popis výsledku anglicky

The majority of the materials we encounter in the real-world have variable reflectance when rotated along a surface normal. This view and illumination azimuthally-variable behavior is known as visual anisotropy. Such behavior can be represented by a four-dimensional anisotropic BRDF that characterizes the anisotropic appearance of homogeneous materials. Unfortunately, most past research has been devoted to simplistic three dimensional isotropic BRDFs. In this paper, we analyze and categorize basic typesof BRDF anisotropy, use a psychophysical study to assess at which conditions can isotropic appearance be used without loss of details in material appearance. To this end, we tested the human impression of material anisotropy on various shapes and undertwo illuminations. We conclude that subjects sensitivity to anisotropy declines with increasing complexity of 3D geometry and increasing uniformity of illumination environment. Finally, we derive and perceptually validate a computationall

Druh

D - Stať ve sborníku

CEP obor

BD - Teorie informace

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of the ACM SIGGRAPH Symposium on Applied Perception

ISBN

978-1-4503-3812-7

ISSN

—

e-ISSN

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Počet stran výsledku

8

Strana od-do

25-32

Název nakladatele

ACM

Místo vydání

New York

Místo konání akce

Tubingen

Datum konání akce

13. 9. 2015

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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