Journal article
Spectral measurement of daylights and surface properties of natural objects in Japan
- Abstract:
- We present a spectral dataset of daylights and surface reflectances and transmittances of natural objects measured in Japan. Daylights were measured under the sun and under shadow from dawn to dusk on four different days to capture their temporal spectral transition. We separately measured daylight spectra at five different locations (including an open space and a forest) with minimum time difference to reveal whether a local environment alters daylight spectra reaching the ground. We found that colors of natural objects were spread in a limited area of color space, and data points were absent around saturated green regions. Daylight spectra were found to have a larger variation across time, weather, and local environments than previously thought. Datasets are made freely available, expanding past public datasets mainly collected in Northern America and Europe.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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- Files:
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(Preview, Version of record, 12.9MB, Terms of use)
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- Publisher copy:
- 10.1364/oe.441063
Authors
- Publisher:
- Optica
- Journal:
- Optics Express More from this journal
- Volume:
- 30
- Issue:
- 3
- Pages:
- 3183-3204
- Publication date:
- 2022-01-18
- Acceptance date:
- 2021-11-13
- DOI:
- EISSN:
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1094-4087
- Language:
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English
- Keywords:
- Pubs id:
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1210597
- Local pid:
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pubs:1210597
- Deposit date:
-
2021-11-18
Terms of use
- Copyright date:
- 2022
- Rights statement:
- Copyright © 2021 The Author(s). Published by The Optical Society under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.
- Licence:
- CC Attribution (CC BY)
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