A protocol for evaluating the accuracy of 3D body scanners

Makiko Kouchi*, Masaaki Mochimaru, Bruce Bradtmiller, Hein Daanen, Peng Li, Beatriz Nacher, Yunja Nam

*Corresponding author for this work

    Research output: Contribution to JournalArticleAcademicpeer-review

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    Abstract

    Scan-derived landmarks locations and surface shapes are more and more used, but there is no commonly accepted protocol for evaluating the accuracy of these measurements. Therefore we propose a protocol for evaluating the accuracy of surface shape and the repeatability of scan-derived landmark locations. According to existing Japanese and German domestic standards, we propose to use an artefact (e.g. sphere with diameter of about 120 mm) calibrated very accurately for evaluating the accuracy of scanner-systems. For evaluating the repeatability of landmark locations, we propose to use an anthropomorphic dummy with landmark locations premarked. These test objects are measured by a 3D body scanner to be evaluated. Evaluation parameters such as trueness, precision, and repeatability are calculated from the measured data. A round-robin test was conducted in six different institutes using 17 body/head/foot scanners produced by eight companies. The purposes of the roundrobin test were to evaluate the availability of test objects to different body scanners, and to examine the measurement locations of test objects and quality parameters to be reported. As a result, the proposed test objects could be measured and the data exported by all scanner systems except one, which could not export the ball measurement. For a comparative purpose, a figure of measured surface might be useful.

    Original languageEnglish
    Pages (from-to)4010-4017
    Number of pages8
    JournalWork: A Journal of Prevention, Assessment and Rehabilitation
    Volume41
    Issue numberSupplement 1
    DOIs
    Publication statusPublished - 2012
    EventInternational Ergonomics Association Conference - Recife, Brasil
    Duration: 1 Jan 20121 Jan 2012

    Bibliographical note

    Issue title: IEA 2012: 18th World congress on Ergonomics - Designing a sustainable future

    Keywords

    • 3D anthropometry
    • accuracy
    • landmarks
    • Reliability

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