US 2019/0098280 A1 · TRIANGULATION SCANNER AND CAMERA FOR AUGMENTED REALITY

Abstract

A method and system of combining 2D images into a 3D image. The method includes providing a coordinate measurement device and a triangulation scanner having an integral camera associated therewith, the scanner being separate from the coordinate measurement device. In a first instance, the coordinate measurement device determines the position and orientation of the scanner and the integral camera captures a first 2D image. In a second instance, the scanner is moved, the coordinate measurement device determines the position and orientation of the scanner, and the integral camera captures a second 2D image. A common feature point in the first and second images is found and is used, together with the first and second images and the positions and orientations of the scanner in the first and second instances, to create the 3D image.

Claims19

Dependent claims

A method of combining a plurality of two-dimensional (2D) images into a three-dimensional (3D) image of an object, the method comprising steps of:

forming a first 2D image at the first position with a camera on a triangulation scanner;
forming a second 2D image with the camera at the second position;
determining at least one cardinal point in the first 2D image and the second 2D image;
determining 3D coordinates of the at least one cardinal point based at least in part on a first 3D coordinates of a retroreflector at the first position and a second 3D coordinates of the retroreflector at the second position, the first 3D coordinates and second 3D coordinates measured with a laser tracker device;
generating a 3D image from the first 2D image and the second 2D image based at least in part on the 3D coordinates of the at least one cardinal point;
and
storing in a memory the first 3D image.

4 more elements

A system for combining a plurality of two-dimensional (2D) images into a three-dimensional (3D) image of an object, the system comprising:

a six-degree of freedom triangulation scanner having a retroreflector and an augmented reality (AR) camera;
a laser tracker having a distance meter, the device operable to measure a distance from the laser tracker to the retroreflector, the laser tracker further operable to determine a 3D coordinates of the triangulation scanner;
one or more processors responsive to nontransitory executable computer instructions, the one or more processors operably coupled to the triangulation scanner and the laser tracker, the nontransitory executable computer instructions comprising:
p2 determining with the device a first 3D coordinates of the retroreflector at a first position;
forming a first 2D image with the camera at the first position;
determining with the device a second 3D coordinates of the triangulation scanner at a second position;
forming a second 2D image with the AR camera at the second position;
determining at least one cardinal point in the first 2D image and the second 2D image;
determining 3D coordinates of the at least one cardinal point based at least in part on the first set of 3D coordinates and the second set of 3D coordinates;
creating a 3D image from the first 2D image and the second 2D image based at least in part on the 3D coordinates of the at least one cardinal point in the first frame of reference;
and
storing in a memory the 3D image.

9 more elements

Dependencies are inferred from the claim text.

Triangulation scanner and camera for augmented reality

Life of this patent

Triangulation scanner and camera for augmented reality

Life of this patent

Abstract

Claims19