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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2017.10
- 수록면
- 507 - 510 (4page)
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초록· 키워드
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Accurate measurements of reflectance and color require spectrophotometers with prices exceeding $3000. Recently, new "color instruments" became available with prices below $300, thus opening up new markets. We investigated the Node+ChromaPro (also available as Colour PIN from NCS) and the ColorMUSE, launched in 2015 and 2016 by Variable Inc. Both instruments are colorimeters, combining light from 3 to 4 different LEDs with one light sensor. Obviously, they do not provide full spectral reflectance. We investigated color accuracy compared to a high-end spectrophotometer, the BYK-mac from BYK-Gardner. With different sets of samples we find for the Node an average value of dECMC(1:1) = 1.50, and a maximum of 7.86, when comparing with the 45° geometry of the BYK-mac.
Utilizing measurement data on the Spectral Power Distributions of the LEDs we developed three methods to improve color accuracy as compared to the BYK-mac data. We used these methods on different sets of samples with various degrees of gloss, both for training the models underlying the methods and for independent tests of model accuracy. Average color accuracy of the Node+ChromaPro improves from dECMC(1:1) = 1.82 to 1.16 with respect to BYK-mac data. The percentage of samples with dECMC(1:1) < 1.0 increases from 30.9% (uncorrected) to 64%.
Utilizing measurement data on the Spectral Power Distributions of the LEDs we developed three methods to improve color accuracy as compared to the BYK-mac data. We used these methods on different sets of samples with various degrees of gloss, both for training the models underlying the methods and for independent tests of model accuracy. Average color accuracy of the Node+ChromaPro improves from dECMC(1:1) = 1.82 to 1.16 with respect to BYK-mac data. The percentage of samples with dECMC(1:1) < 1.0 increases from 30.9% (uncorrected) to 64%.
목차
ABSTRACT
1. INTRODUCTION
2. SPECTRAL POWER DISTRIBUTIONS
3. COLOR ACCURACY COMPARED TO SPECTROPHOTOMETER
4. METHODS TO IMPROVE COLOR ACCURACY
4. RESULTS FOR THE NODE+CHROMAPRO
5. RESULTS FOR THE COLORMUSE
5. CONCLUSIONS
REFERENCES
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UCI(KEPA) : I410-ECN-0101-2019-651-000502365