Fast and accurate metrology of multi-layered ceramic materials by an automated boundary detection algorithm developed for optical coherence tomography data
2014 (English)In: Optical Society of America. Journal A: Optics, Image Science, and Vision, ISSN 1084-7529, Vol. 31, no 2, 217-226 p.Article in journal (Refereed) Published
Optical coherence tomography (OCT) is useful for materials defect analysis and inspection with the additional possibility of quantitative dimensional metrology. Here, we present an automated image-processing algorithm for OCT analysis of roll-to-roll multilayers in 3D manufacturing of advanced ceramics. It has the advantage of avoiding filtering and preset modeling, and will, thus, introduce a simplification. The algorithm is validated for its capability of measuring the thickness of ceramic layers, extracting the boundaries of embedded features with irregular shapes, and detecting the geometric deformations. The accuracy of the algorithm is very high, and the reliability is better than 1 mu m when evaluating with the OCT images using the same gauge block step height reference. The method may be suitable for industrial applications to the rapid inspection of manufactured samples with high accuracy and robustness.
Place, publisher, year, edition, pages
2014. Vol. 31, no 2, 217-226 p.
Other Physics Topics
IdentifiersURN: urn:nbn:se:kth:diva-142881DOI: 10.1364/JOSAA.31.000217ISI: 000331070600001ScopusID: 2-s2.0-84898064809OAI: oai:DiVA.org:kth-142881DiVA: diva2:705023
FunderEU, FP7, Seventh Framework Programme, FP7-NMP4-2007-214122
QC 201403142014-03-142014-03-132014-04-28Bibliographically approved