Reflectance spectra recovery with non-negativity constraints

Kohei Inoue, Kenji Hara, Kiichi Urahama

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

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.

Original languageEnglish
Title of host publication2016 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509006298
DOIs
Publication statusPublished - Jan 18 2017
Event2016 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2016 - Phuket, Thailand
Duration: Oct 24 2016Oct 27 2016

Publication series

Name2016 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2016

Other

Other2016 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2016
CountryThailand
CityPhuket
Period10/24/1610/27/16

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Signal Processing
  • Instrumentation

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    Inoue, K., Hara, K., & Urahama, K. (2017). Reflectance spectra recovery with non-negativity constraints. In 2016 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2016 [7824687] (2016 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2016). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISPACS.2016.7824687