Patent ID: 8582824
Filing Date: 2013-11-12
Classification: G01B,G01C,G06T

Abstract:
1. A method for determining a profile of a work surface, the method comprising: (A) capturing, using at least one image capture device, first and second pluralities of images of the work surface, comprising capturing the first plurality from a first viewpoint and capturing the second plurality from a second viewpoint which differs from the first viewpoint, said first and second pluralities of images lying in a plurality of planes, wherein the work surface comprises a cellular core, wherein the cellular core comprises a plurality of cells having a plurality of walls with a plurality of ends; (B) producing, from the first and second pluralities of images, a representation of a three-dimensional locus of points defining a virtual continuous surface fitted to the plurality of ends of the plurality of walls of the cellular core, comprising: (B)(1) finding, based on the first and second pluralities of images, first and second pluralities of junctions of the plurality of cells in the first and second pluralities of images; (B)(2) calculating, based on the first and second pluralities of junctions, a first and second plurality of locations in the first and second plurality of planes of the pluralities of images of a first and second plurality of centroids of the plurality of cells in the first and second plurality of images; and (B)(3) triangulating a plurality of three-dimensional coordinates based on the first and second plurality of locations of the first and second plurality of centroids in the first and second plurality of images and a plurality of baselines.