Photometric stereo system for detailed analysis of material surfaces
Mettänen, Marja; Melin, Joonas; Ihalainen, Heimo (2015)
Mettänen, Marja
Melin, Joonas
Ihalainen, Heimo
2015
IMEKO XXI World Congress, Measurement in Research and Industry, Proceedings, August 30 - September 4, 2015, Prague, Czech Republic
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:tty-201705121384
https://urn.fi/URN:NBN:fi:tty-201705121384
Kuvaus
Peer reviewed
Tiivistelmä
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.
Kokoelmat
- TUNICRIS-julkaisut [16727]