Patent ID: 11908162
Assignee: FARO TECHNOLOGIES, INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 5:
6. A system comprising:
a first target-mode projector operable to protect a first line of light onto an object;
a first illuminator operable to illuminate markers on or near the object;
a first geometry-mode projector operable to project a first multiplicity of lines onto the object;
a first camera operable to capture a first target-mode image of the first line of light on the object and the illuminated first markers;
the first camera further operable to receive a first geometry-mode image of the projected first multiplicity of lines;
a second camera operable to receive a second geometry-mode image of the projected first multiplicity of lines, the first geometry-mode projector being a different distance from the second camera than from the first camera;
one or more processors operable to determine first three-dimensional (3D) coordinates of points on the object based at least in part on the captured first target-mode image, the one or more processors being further operable to determine second 3D coordinates of points on the object based at least in part on the captured first geometry-mode image and the captured second geometry-mode image, wherein the one or more processors are further operable to determine 3D coordinates of points on the object in a global frame of reference by combining the 3D coordinates obtained during a first interval of time with the first 3D coordinate; obtained during a second interval of time, the combining based at least in part on the second 3D coordinates obtained during the first interval of time and the second 3D coordinates obtained during the second interval of time;
a second geometry-mode projector operable to project onto the object a second multiplicity of lines of light;
the first camera further operable to capture a third geometry-mode image of the projected second multiplicity of lines;
a second camera operable to capture a fourth geometry-mode image of the projected second multiplicity of lines, the second geometry-mode projector being a different distance from the second camera than the first camera; and
the one or more processors further operable to determine the second 3D coordinates of points on the object further based at least in part on the third geometry-mode image, the fourth geometry-mode image, and the second multiplicity of lines from the second geometry-mode projector.