TY - GEN
T1 - Reflectance spectra recovery with non-negativity constraints
AU - Inoue, Kohei
AU - Hara, Kenji
AU - Urahama, Kiichi
N1 - Publisher Copyright:
© 2016 IEEE.
Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2017/1/18
Y1 - 2017/1/18
N2 - We propose two methods for recovering the reflectance spectra of given colorimetric data by using the nonnegative constraints in reflectance spectra. We formulate the problem of reflectance spectra recovery as a non-negative least squares problem and solve it with two iterative methods. Experimental results demonstrate that the two methods give similar recovery results, where Macbeth ColorChecker data are used for recovering the reflectance spectra of Neugebauer primary colors. We also transform the recovered reflectance spectra into tristimulus values to visualize them, where an ad hoc scaling operation is introduced for brightening the recovered colors.
AB - We propose two methods for recovering the reflectance spectra of given colorimetric data by using the nonnegative constraints in reflectance spectra. We formulate the problem of reflectance spectra recovery as a non-negative least squares problem and solve it with two iterative methods. Experimental results demonstrate that the two methods give similar recovery results, where Macbeth ColorChecker data are used for recovering the reflectance spectra of Neugebauer primary colors. We also transform the recovered reflectance spectra into tristimulus values to visualize them, where an ad hoc scaling operation is introduced for brightening the recovered colors.
UR - http://www.scopus.com/inward/record.url?scp=85015062432&partnerID=8YFLogxK
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U2 - 10.1109/ISPACS.2016.7824687
DO - 10.1109/ISPACS.2016.7824687
M3 - Conference contribution
AN - SCOPUS:85015062432
T3 - 2016 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2016
BT - 2016 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2016
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2016 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2016
Y2 - 24 October 2016 through 27 October 2016
ER -