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- Title
Estimating spectral reflectance from camera responses based on CIE XYZ tristimulus values under multi-illuminants.
- Authors
Zhang, Xiandou; Wang, Qiang; Li, Jincheng; Zhou, Xiaohui; Yang, Yuechuan; Xu, Haisong
- Abstract
A new spectral reflectance estimation method based on CIE XYZ values under multi-illuminants was proposed to obtain multi-spectral images accurately by using digital still cameras. CIE XYZ values under multi-illuminants were initially predicted from raw RGB responses by using a polynomial model with local training samples. Then, spectral reflectance was constructed from the predicted CIE XYZ values via the pseudo-inverse method. Experimental results indicated that the new spectral reflectance estimation method significantly outperformed the traditional colorimetric characterization method without requiring extra training samples or greatly increasing computational complexities. © 2016 Wiley Periodicals, Inc. Col Res Appl, 42, 68-77, 2017
- Subjects
SPECTRAL reflectance; TRISTIMULUS system; REFLECTANCE measurement
- Publication
Color Research & Application, 2017, Vol 42, Issue 1, p68
- ISSN
0361-2317
- Publication type
Article
- DOI
10.1002/col.22037