Reflectance spectra recovery with non-negativity constraints

Kohei Inoue, Kenji Hara, Kiichi Urahama

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

    6 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
    Country/TerritoryThailand
    CityPhuket
    Period10/24/1610/27/16

    All Science Journal Classification (ASJC) codes

    • Computer Networks and Communications
    • Signal Processing
    • Instrumentation

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