Improving calibration time and accuracy for situation-specific models of color differentiation

David R. Flatla, Carl Gutwin

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

    13 Citations (Scopus)

    Abstract

    Color vision deficiencies (CVDs) cause problems in situations where people need to differentiate the colors used in digital displays. Recoloring tools exist to reduce the problem, but these tools need a model of the user's color-differentiation ability in order to work. Situation-specific models are a recent approach that accounts for all of the factors affecting a person's CVD (including genetic, acquired, and environmental causes) by using calibration data to form the model. This approach works well, but requires repeated calibration - and the best available calibration procedure takes more than 30 minutes. To address this limitation, we have developed a new situation-specific model of human color differentiation (called ICD-2) that needs far fewer calibration trials. The new model uses a color space that better matches human color vision compared to the RGB space of the old model, and can therefore extract more meaning from each calibration test. In an empirical comparison, we found that ICD-2 is 24 times faster than the old approach, and had small but significant gains in accuracy. The efficiency of ICD-2 makes it feasible for situation-specific models of individual color differentiation to be used in the real world.

    Original languageEnglish
    Title of host publicationASSETS'11: Proceedings of the 13th International ACM SIGACCESS Conference on Computers and Accessibility
    Place of PublicationNew York, USA
    PublisherAssociation for Computing Machinery
    Pages195-202
    Number of pages8
    ISBN (Print) 9781450309202
    DOIs
    Publication statusPublished - 24 Oct 2011
    Event13th International ACM SIGACCESS Conference on Computers and Accessibility - Apex Dundee City Quay Hotel , Dundee, United Kingdom
    Duration: 24 Oct 201126 Oct 2011
    http://assets11.sigaccess.org/

    Conference

    Conference13th International ACM SIGACCESS Conference on Computers and Accessibility
    Abbreviated titleASSETS 2011
    CountryUnited Kingdom
    CityDundee
    Period24/10/1126/10/11
    Internet address

    Keywords

    • adaptation tools
    • color blindness
    • color differentiation
    • color vision deficiency (cvd)
    • modeling

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  • Cite this

    Flatla, D. R., & Gutwin, C. (2011). Improving calibration time and accuracy for situation-specific models of color differentiation. In ASSETS'11: Proceedings of the 13th International ACM SIGACCESS Conference on Computers and Accessibility (pp. 195-202). Association for Computing Machinery. https://doi.org/10.1145/2049536.2049572