Patent ID: 9519961
Filing Date: 2016-12-13
CPC Classification: G01N,G06K,G06T,H04N

Claim Text:
1. A method of imaging a cut stone having a girdle, comprising: a) obtaining, in a first placement of the cut stone, a first volumetric model of a first part of the cut stone, including the girdle, and taking a plurality of first images of the first part of the cut stone from a plurality of viewing directions, each defined by its horizontal and vertical angles relative to a plane passing via the girdle; (b) obtaining, in a second placement of the cut stone, a second volumetric model of a second part of the cut stone, including the girdle, and taking a plurality of second images of the second part of cut stone from a plurality of viewing direction, each defined by its horizontal and vertical angles relative to said plane passing via the girdle; (c) correlating the second images with the first images using the first and second volumetric models, based on the horizontal and vertical angles, to obtain correlated images of the first and second parts of the cut stone, with a unified volume of the first volumetric model and the second volumetric model being minimal and the first volumetric model and the second volumetric model coinciding; (d) generating a volumetric image of the cut stone by merging segments cropped from the correlated images of the first and second parts of the cut stone; and (e) outputting said volumetric image so as to allow a viewer to view the cut stone with its first and second parts as imaged from the plurality of viewing directions.