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Photometric stereo system for detailed analysis of material surfaces

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


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 a conference publication
EventIMEKO World Congress -
Duration: 1 Jan 1900 → …


ConferenceIMEKO World Congress
Period1/01/00 → …


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.

Publication forum classification

Field of science, Statistics Finland

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