Hexagon Technology Center Gmbh

Eugen Voit

Knut Siercks

Bo Pettersson

Jürg Hinderling

Klaus Schneider

Benedikt Zebhauser

Pascal Jordil

A coordinate measuring machine () for determining at least one spatial coordinate of a measurement point of an object () to be measured, comprising a base () and a drive mechanism, adapted to drive a probe head () in a manner such that the probe head () is capable to move relative to the base () for approaching a measurement point, characterized by a first range camera () having a range image sensor with a sensor array, wherein the range camera () is adapted to be directed to the object () for providing a range image () of the object (), and wherein range pixels of the range image are used for creating a point cloud with 3D-positions of target points of the object (), and a controller, adapted to control the drive mechanism on the basis of 3D-positions of the target points.

Coordinate measuring machine having a camera

Some embodiments of the invention relate to an optical measuring device for determining 3D coordinates of an object. The optical measuring device may include a projector device for illuminating the object with at least one predefined pattern; at least one PSA camera for capturing a 2D image of the pattern as reflected from the object; computing means for measuring a sequence of brightness values of at least one 2D image point from the 2D images, and calculating a 3D coordinate of an object point which is correlated with the measured sequence of brightness values of the 2D image point. The optical measuring device may also include a TOF camera for capturing at least one range image of the object, the range image including distance information of the object for the dissolution of ambiguity in calculating the 3D coordinate.

Method and device for determining three-dimensional coordinates of an object

The invention relates to a method for determining 3D coordinates of an object () by a handheld laser-based distance measuring device (), the method comprising determining an object point () at the object (); measuring a distance () from the handheld laser-based distance measuring device () to the determined object point () by means of an EDM (); capturing a 3D image () of the object (), the 3D image () includes the determined object point (); identifying the determined object point () in the captured 3D image (); and linking the measured distance () with the identified object point () in the 3D image (). The invention also relates to a handheld laser-based distance measuring device () and a computer program product for execution of said method.

Method and device for determining 3D coordinates of an object

Embodiments described herein include a surveying apparatus for surveying a measurement scenery. The surveying apparatus may include a base defining a vertical axis; a support tiltable around the vertical axis; a telescope unit tiltable around the vertical axis and around a horizontal axis that is orthogonal to the vertical axis and comprises means for distance measurement; motor means for rotational driving of the support and the telescope unit; and angle determination means for detecting an orientation of the telescope unit with respect to the base. In some embodiments, the telescope unit comprises a first camera capable to take a visible image of the measurement scenery and/or means for capturing coordinates of 3D-points of the measurement scenery. In some embodiments, the surveying apparatus comprises a display capable to display at least a portion of the visible image taken by the first camera and/or at least a portion of the 3D-points.

Surveying apparatus having a range camera

A method for a six degree of freedom position and orientation determination of a known shape in a scenery is disclosed. The method includes taking a range image with a range imaging camera and a visual picture with a digital camera. The range imaging camera includes a sensor array with a first number of pixels. Determining a 3D cluster of points from range information collected from the sensor array to a point of the scenery. the digital camera comprises an image sensor having a second number of pixels, resulting in a 2D picture. A stored 3D digital representation of the known shape may be fitted in a virtual space to match the reproduction of the known object in the 2D picture and the 3D cluster of points and determining the six degree of freedom position and orientation of the known shape according to the virtual match.

Growing community of inventors

Au, Switzerland

Eugen Voit