Skip to Main content Skip to Navigation
Book sections

Automatic Nacre Thickness Measurement of Tahitian Pearls

Abstract : In this paper a methodology for an automatized measurement of the nacre thickness of Tahitian pearls is presented. An adapted snake approach as well as our own developed circle detection algorithm are implemented to extract the nacre boundaries out of X-ray images. The results are validated by experts currently performing manually the obligatory nacre thickness control for millions of Tahitian pearls that are exported each year. Equivalent articles propose methods suitable for round pearls, whereas this paper contains methods to evaluate the nacre profile of pearls independently of their shape. As the algorithms are not specifically parametrized for Tahitian pearls, the methods can be adapted for quality assessment of other pearls as well.
Document type :
Book sections
Complete list of metadata
Contributor : Elodie Delcambre-Maillard Connect in order to contact the contributor
Submitted on : Friday, February 5, 2021 - 1:05:24 AM
Last modification on : Sunday, June 26, 2022 - 1:42:42 PM
Long-term archiving on: : Thursday, May 6, 2021 - 6:20:18 PM


Loesdau, Chabrier, Gabillon - ...
Files produced by the author(s)




Alban Gabillon, Martin Loesdau, Sébastien Chabrier. Automatic Nacre Thickness Measurement of Tahitian Pearls. Lecture Notes in Computer Science, 9164, Springer Verlag, pp.446-455, 2015, ⟨10.1007/978-3-319-20801-5_49⟩. ⟨hal-03132306⟩



Record views


Files downloads