Compensating for color artifacts in the design of technical kaleidoscopes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F16%3A00304655" target="_blank" >RIV/68407700:21230/16:00304655 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21220/16:00304655

Výsledek na webu

<a href="http://dx.doi.org/10.1117/1.OE.55.11.113104" target="_blank" >http://dx.doi.org/10.1117/1.OE.55.11.113104</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/1.OE.55.11.113104" target="_blank" >10.1117/1.OE.55.11.113104</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Compensating for color artifacts in the design of technical kaleidoscopes

Popis výsledku v původním jazyce

In the applications of computer graphics, bidirectional texture function (BTF) is used for realistic and predictive rendering. The goal of current research is to get a surface representation indistinguishable from the real world. We developed, built, and tested a portable instrument for BTF acquisition based on kaleidoscopic imaging. We discuss the color issues we experienced after the initial tests. We show that the same color balance cannot be applied to the whole image as the spectral response of the instrument varies depending on the position within the image. All optical elements were inspected for their contributions to the spectral behavior of the instrument. A software simulator of a mathematical model of the device was implemented. We found a way to implement all these contributions into the image processing pipeline. In this way, the correct white balance for each individual pixel in the image is found and applied, allowing for a more faithful color representation. Also proposed is an optimized dielectric protective layer for the kaleidoscope’s mirrors causing the least possible color aberration.

Název v anglickém jazyce

Compensating for color artifacts in the design of technical kaleidoscopes

Popis výsledku anglicky

In the applications of computer graphics, bidirectional texture function (BTF) is used for realistic and predictive rendering. The goal of current research is to get a surface representation indistinguishable from the real world. We developed, built, and tested a portable instrument for BTF acquisition based on kaleidoscopic imaging. We discuss the color issues we experienced after the initial tests. We show that the same color balance cannot be applied to the whole image as the spectral response of the instrument varies depending on the position within the image. All optical elements were inspected for their contributions to the spectral behavior of the instrument. A software simulator of a mathematical model of the device was implemented. We found a way to implement all these contributions into the image processing pipeline. In this way, the correct white balance for each individual pixel in the image is found and applied, allowing for a more faithful color representation. Also proposed is an optimized dielectric protective layer for the kaleidoscope’s mirrors causing the least possible color aberration.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JR - Ostatní strojírenství

OECD FORD obor

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Projekt

<a href="/cs/project/GA14-19213S" target="_blank" >GA14-19213S: Mobilní měření, komprese a syntéza obrazu pro prostorově proměnnou reflektanci materiálů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Optical Engineering

ISSN

0091-3286

e-ISSN

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Svazek periodika

55

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

12

Strana od-do

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Kód UT WoS článku

000390668700025

EID výsledku v databázi Scopus

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