Photometric stereo system for detailed analysis of material surfaces

Marja Mettänen, Joonas Melin, Heimo Ihalainen

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

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    Abstract

    This paper describes a photometric stereo system for the measurement of surface topography. The system provides versatile experimental possibilities due to movable multicolor LEDs, movable camera, and a traveling (xy-)table for the sample. We introduce our measurement setup and present analysis of its performance. Our topography maps correlate well with the contact profilometry reference map, and reveal different details of the surfaces depending on the illumination wavelength and pixel size.
    Original languageEnglish
    Title of host publicationIMEKO XXI World Congress, Measurement in Research and Industry, Proceedings, August 30 - September 4, 2015, Prague, Czech Republic
    Number of pages6
    Publication statusPublished - 2015
    Publication typeA4 Article in conference proceedings
    EventIMEKO World Congress -
    Duration: 1 Jan 1900 → …

    Conference

    ConferenceIMEKO World Congress
    Period1/01/00 → …

    Publication forum classification

    • Publication forum level 0

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