Patent ID: 8339616
Filing Date: 2012-12-25
Classification: G01B,G06T

Abstract:
1. A method of obtaining three-dimensional coordinates of physical objects comprising steps of: (a) illuminating an object by radiation patterns emanating from a projector frame, having a plurality of strips, each said strip having predetermined position and orientation, having at least some of said strips intersecting each other at nodal points; (b) recording in a digital frame at least a portion of said strips and said nodal points reflected by said illuminated object, in the form of intersecting profiles of illuminated pixels in said digital frame corresponding to said portion of said strips and said nodal points; (c) locating said nodal points and said profiles pixel coordinates in said digital frame; (d) determining nodal points in said projector frame corresponding to said nodal points in said portion of said strips and said nodal points in said digital frame; (e) identifying strip pixels from each said nodal point in said digital frame and at each said corresponding nodal point in said projector frame; (f) calculating three-dimensional measurements corresponding to said profiles in said digital frame by triangulating said profiles pixels and said projected strips in a local frame of coordinates.