System and method of acquiring three-dimensional coordinates using multiple coordinate measurment devices
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United States of America Patent
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Jun 20, 2017
Grant Date -
Jan 30, 2014
app pub date -
Oct 2, 2013
filing date -
Oct 2, 2013
priority date (Note) -
Withdrawn
status (Latency Note)
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Abstract
A method is provided of determining three-dimensional coordinates of an object surface with a laser tracker and structured light scanner. The method includes providing the scanner having a body, a pair of cameras, a projector, and a processor. The projector and cameras are positioned in a non-collinear arrangement. The projector is configured to project a first pattern onto the surface. The method also includes providing the tracker which emits a beam of light onto the retroreflector. The tracker receives a reflected beam of light. The first location is measured with the tracker. The first orientation is measured with the tracker. The first surface pattern is projected onto the surface. A pair of images of the surface pattern is acquired with cameras. The processor determines the 3D coordinates of a first plurality of points in the tracker frame of reference based in part on epipolar constraints of the cameras and projector.
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