Stereovision setup for accurate 3D deformation measurements
1999 (English)In: Optical Engineering for Sensing and Nanotechnology: ICOSN '99 / [ed] Ichirou Yamaguchi, Bellingham, Wash.: SPIE - International Society for Optical Engineering, 1999, 74-77 p.Conference paper (Refereed)
The system described uses a digital image correlation technique called Digital speckle photography (DSP) for the measurement of 3-D surface deformations. A stereoscopic technique with two perpendicular video cameras was developed to enable accurate measurements on arbitrarily shaped objects. Using the calibration algorithm described the main source of error are random errors originating from the correlation algorithm. Standard deviations of displacements as low as 2 micrometer for in-plane displacements and 12 micrometer for the out-of-plane component are reported, for an inspected area of 100 X 100 mm2.
Place, publisher, year, edition, pages
Bellingham, Wash.: SPIE - International Society for Optical Engineering, 1999. 74-77 p.
Proceedings of SPIE, the International Society for Optical Engineering, ISSN 0277-786X ; 3740
Research subject Experimental Mechanics
IdentifiersURN: urn:nbn:se:ltu:diva-38330DOI: 10.1117/12.347750ScopusID: 32597071Local ID: cb0b5c60-79af-11dd-b356-000ea68e967bISBN: 978-0819432148 OAI: oai:DiVA.org:ltu-38330DiVA: diva2:1011830
International Conference on Optical Sensing and Nanotechnology : 16/06/1999 - 18/06/1999
Godkänd; 1999; 20080903 (ysko)2016-10-032016-10-03Bibliographically approved