Abstract:
A three-dimensional (3D) measuring device includes a cooling fan and an enclosure attached to a projector and a camera. The camera images a pattern of light projected by the projector onto an object to determine 3D coordinates points on the object. A fan draws air through an opening in the front of the enclosure, across a plurality of components in the enclosure and out a second opening in the enclosure.
Abstract:
A method for optically scanning and measuring a scene by a laser scanner includes generating multiple scans; tracking scanner positions with a position-tracking device for the multiple scans and providing tracked scanner positions in response; registering sequentially scans selected from the multiple scans into clusters using registration points or targets and confirming registration of the scans into the clusters according to specified quality criteria being fulfilled; selecting scans from the clusters and forming pairs of scans; forming an intersection of the selected pairs and comparing a size of the intersection with a threshold value obtained based at least in part on the tracked scanner positions; and attempting to register the pairs of scans if the size of the intersection exceeds the threshold value and accepting the registered pairs of scans if the registration is successful.
Abstract:
An unmanned aerial vehicle (UAV) such as a drone, quadcopter or octocopter having a projector on board for projecting information into physical space such as onto objects or locations while the UAV is in flight, and further with the position and orientation (i.e., the six degrees of freedom) of the UAV in flight being accurately tracked and controlled from the ground, e.g., by a laser tracker or a camera bar, thereby leading to a relatively more stable flight of the UAV.
Abstract:
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.
Abstract:
A system includes a laser tracker, a camera bar, an accessory, and an electrical system, the camera bar including a mounting structure, two cameras, and three non-collinear reflector points, the accessory including a plurality of light markers, the electrical system including a processor that causes the tracker to measure 3D coordinates of the three reflector points, to measure the light markers with the cameras, and to determine a position and orientation of the assembly in a tracker coordinate system.
Abstract:
A method of comparing measured three-dimensional (3D) measurement data to an object is provided. The method includes the steps of providing a three dimensional measurement device configured to measure 3D coordinates of points on the object and a computing device having a camera and display. During an inspection process, the method measures the object with the 3D measurement device which provides a first collection of 3D coordinates. The first collection of 3D coordinates is stored on the computer network and is associated with an AR marker. During an observation process the method reads the AR marker and transmits from the computer network the first collection of 3D coordinates and a dimensional representation of the object to the computing device. A portion of the first collection of 3D coordinates is registered to the camera image. On the integrated display the registered collection of 3D coordinates and the camera image are shown.
Abstract:
A target is provided having a retroreflector. A body is provided having a spherical exterior portion, the body containing a cavity. The cavity is sized to hold the retroreflector, the cavity open to the exterior of the body and having at least one surface opposite the opening, the retroreflector at least partially disposed in the cavity, wherein the retroreflector and at least one surface define a space therebetween. A transmitter is configured to emit an electromagnetic signal. A first actuator is configured to initiate emission of the electromagnetic signal, wherein the transmitter and the first actuator are affixed to the body.
Abstract:
A method of finding a home reference distance of a 3D coordinate measurement device in which a mathematical adjustment is made to move the vertex point to the sphere center of a spherically mounted retroreflector (SMR).
Abstract:
A method, system and computer program product are provided for displaying three-dimensional measurement points on a two-dimensional plane of a display screen having a plurality of pixels. The method includes projecting the measurement points onto the plane. Each of the measurement points is assigned to one of the pixels. A depth value is assigned to each of the pixels. A first pixel is selected having a first measurement point and a first depth value. A first side is searched for a second pixel having a second measurement point and a second depth value. A second side is searched for a third pixel having a third measurement point and a third depth value. It is determined whether the second and third measurement points are on a same plane. The first depth value of the first pixel is changed when the second and third measurement points are on the same plane.
Abstract:
A portable articulated arm coordinate measurement machine having an articulated arm that includes a first arm connected to a second arm segment by a connecting segment. An assembly is provided having a first pair of bearings and a first optical encoder and a second pair of bearings and a second optical encoder The first optical encoder includes a first patterned disk and a first read head. The second optical encoder includes a second patterned disk and a second read head. The first and second patterned disks are both fixed with respect to the connecting segment. An electronic circuit is operably coupled to the first read head and the second read head, the electronics being configured to determine three-dimensional coordinates of the probe based at least in part on a first angle and a second angle measured by the first and second optical encoders.