The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 26, 2019
Filed:
Apr. 11, 2018
Inexto SA, Lausanne, CH;
Nicolas Schaefer, Orbe, CH;
Inexto S.A., Lausanne, CH;
Abstract
The invention relates to method for computing a unique identifier for a gemstone, including acquiring a 2D digital master image of the gemstone, where an image of a reference mark on the gemstone defines a master image referential; matching a virtual selection mask with the master image according to a predefined position and orientation with respect to the master image referential; defining, in the master image, a plurality of distinct selected zones corresponding to the location of selection zones of the matched mask; detecting, in each of the plurality of distinct selected zones, the presence or not of at least one facet edge portion image; defining a location of the detected facet edge portion images in the master image; and computing a unique identifier based on the defined locations of the detected facet edge portion images.