Spatio-temporal BRDF: Modeling and synthesis

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F21%3A00352513" target="_blank" >RIV/68407700:21230/21:00352513 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.cag.2021.04.001" target="_blank" >https://doi.org/10.1016/j.cag.2021.04.001</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.cag.2021.04.001" target="_blank" >10.1016/j.cag.2021.04.001</a>

Result language
angličtina
Original language name
Spatio-temporal BRDF: Modeling and synthesis
Original language description
We propose a generalization of example-based texture synthesis to spatio-temporal BRDFs. A key com-ponent of our method is a novel representation of time-varying materials using polynomials describing time-varying BRDF parameters. Our representation allows efficient fitting of measured data into a com-pact spatio-temporal BRDF representation, and it allows an efficient analytical evaluation of distances be-tween spatio-temporal BRDF parameters. We show that even polynomials of low degree are sufficient to represent various time-varying phenomena and provide more accurate results than the previously proposed representation. We are the first who applied the example-based texture synthesis on abstract structures such as polynomial functions. We present two applications of synthesizing spatio-temporal BRDFs using our method: material enlargement and transfer of time-varying phenomenon from an ex-ample to a given static material. We evaluated the synthesized BRDFs in the context of realistic rendering and real-time rendering.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10201 - Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8)

Project
<a href="/en/project/GA18-20374S" target="_blank" >GA18-20374S: Interactive Rendering with Distributed Illumination Computations</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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