A noncontact optical three-dimensional measuring device that includes a projector, a first camera, and a second camera; a processor electrically coupled to the projector, the first camera and the second camera; and computer readable media which, when executed by the processor, causes the first digital signal to be collected at a first time and the second digital signal to be collected at a second time different than the first time and determines three-dimensional coordinates of a first point on the surface based at least in part on the first digital signal and the first distance and determines three-dimensional coordinates of a second point on the surface based at least in part on the second digital signal and the second distance.

Three-dimensional coordinate scanner and method of operation

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

System and method of acquiring three-dimensional coordinates using multiple coordinate measurment devices

Measuring three surface sets on an object surface with a measurement device and scanner, each surface set being 3D coordinates of a point on the object surface. The method includes: the device sending a first light beam to the first retroreflector and receiving a second light beam from the first retroreflector, the second light beam being a portion of the first light beam, a scanner processor and a device processor jointly configured to determine the surface sets; selecting the source light pattern and projecting it onto the object to produce the object light pattern; imaging the object light pattern onto a photosensitive array to obtain the image light pattern; obtaining the pixel digital values for the image light pattern; measuring the translational and orientational sets with the device; determining the surface sets corresponding to three non-collinear pattern elements; and saving the surface sets.

Six degree-of-freedom laser tracker that cooperates with a remote structured-light scanner

A method for determining 3D coordinates of points on a surface of the object by providing a remote probe having a probe tip and a non-contact 3D measuring device having a projector and camera coupled to a processor, projecting a pattern onto the surface to determine a first set of 3D coordinates of points on the surface, determining susceptibility of the object to multipath interference by projecting and reflecting rays from the measured 3D coordinates of the points, projecting a first light to direct positioning of the remote probe by the user, the first light determined at least in part by the susceptibility to multipath interference, touching the probe tip to the surface at the indicated region, illuminating at least three spots of light on the remote probe, capturing an image of the at least three spots with the camera, and determining 3D coordinates of the probe tip.

Diagnosing multipath interference and eliminating multipath interference in 3d scanners by directed probing

A method of conveying first information to a user of a coordinate measurement device by projecting a first pattern with a first target projector, the method including the steps of: providing the first target projector having a target-projector frame of reference and including a body, a first retroreflector, and a projector, providing the coordinate measurement device having a device frame of reference, sending the first beam of light from the coordinate measurement device to the first retroreflector; receiving the second beam of light from the first retroreflector; measuring the orientational set and translational set, the translational set based at least in part on the second beam of light; selecting the first information to be conveyed, the first information selected from the group consisting of a position on the object, a plurality of positions on the object, a direction indicated by a moving pattern, a message that includes one or more symbols or alphanumeric characters, a hidden feature, a measured object characteristic, a modeled characteristic, a magnified representation of surface characteristics, a pattern having meaning according to a rule, and combinations thereof; determining the first pattern of light corresponding to the first information; storing the first pattern; and projecting from the projector the first pattern of light onto the object based at least in part on the translational set and the orientational set.

Six degree-of-freedom laser tracker that cooperates with a remote projector to convey information

The utility model relates to a six-degree-of-freedom real-time measuring device of a compound motion mechanism, which belongs to the technical field of automatic measurement The six-degree-of-freedom real-time measuring device of the compound motion mechanism comprises a controller and a sensor, wherein the sensor is connected with the controller, and the six-degree-of-freedom real-time measuring device is characterized in that the sensor comprises a rotating transformer and a magnetic grid ruler, three angular displacement mechanisms are connected with the rotating transformer, three linear displacement mechanisms are connected with the magnetic grid ruler, the rotating transformer and the magnetic grid ruler are connected with the controller, and the controller is connected with a display The six-degree-of-freedom real-time measuring device has the advantages of simple structure, convenient use, good real-time property, high measurement precision and abundant data treatment interfaces, and can well measure the six-degree-of-freedom displacement, the speed and the like of the compound motion system relative to a geodetic coordinate system

Six-degree-of-freedom real-time measuring device of compound motion mechanism

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Six-degree-of-freedom real-time measuring device of compound motion mechanism