Patent ID: 8970823
Filing Date: 2015-03-03
Classification: G01B

Abstract:
1. A device for optically scanning and measuring an environment comprising: a movable scanner having at least one first projector for producing at least one uncoded first pattern on an object in the environment, the scanner having at least one camera for recording images of the object provided with the pattern, and a controller coupled to the at least one first projector and the at least one camera; at least one second projector is provided which projects a stationary uncoded second pattern on the object while the scanner is moved; wherein the controller has a processor configured to determine a set of three-dimensional coordinates of points on a surface of the object from a set of images acquired by the at least one camera based at least in part on the first pattern, the controller further being configured to register the set of images relative to each other based in part on the stationary second pattern; and wherein the at least one camera includes a first camera and a second camera spaced apart from the first camera, the first camera and second camera each having an image plane, the first camera and second camera are further arranged to acquire images of the first pattern and stationary second pattern on the image planes.