Leica Geosystems Ag

Hexagon Technology Center Gmbh

Jochen Scheja

Knut Siercks

Simon Mark

Charles Leopold Elisabeth Dumoulin

Roman Steffen

Jürgen Dold

Klaus Bereuter

Benjamin Müller

Lukas Heinzle

Burkhard Böckem

Oliver Faix

Claudio Iseli

Josef Müller

Thomas Bösch

Patrik Lengweiler

Bernhard Metzler

Jürg Hinderling

Thomas Jensen

Alexander Velizhev

Elmar Vincent Van Der Zwan

Thomas Fidler

Markus Geser

Hannes Maar

Tim Mayer

Josef Lais

Julien Singer

Stefan Petkov

Wolfgang Rebhandl

Karl Helmut Plangger

Benjamin Schöll

Josef Mueller

Ali Mazloomi Moqaddam

Michael Sutter

Burkhard BÖCKEM

Roman Parys

Danick BRÜHLMANN

A laser scanner and a system with a laser scanner for measuring an environment. The laser scanner includes an optical distance measuring device, a support, a beam steering unit rotatably fixed to the support which rotates around a beam axis of rotation. The beam steering unit includes a mirrored surface which deflects radiation used in the optical distance measurement and an angle encoder for recording angle data. The optical distance measurement is performed by a progressive rotation of the beam steering unit about the beam axis of rotation and the continuous emission of a distance measurement radiation, the emission being made through an outlet area arranged in the direction of the mirrored surface on the support, the receiving optics for receiving radiation are arranged on the support, and wherein the outlet area has a lateral offset with respect to the optical axis of the receiving optics.

Laser scanner

A laser scanner device can be adapted to be mounted to a vehicle, the device comprising a LiDAR module working based on a laser measuring beam and time-of-flight-measurement-principle. The LiDAR module is configured to provide a horizontal field of view of at least 60°, an instantaneous vertical field of view of at least ±2°, a scan resolution of at least one point per 0.8° in horizontal and vertical direction, and a frame rate of at least 10 Hz for scanning at least the entire horizontal and instantaneous vertical field of view with said scan resolution, wherein the LiDAR module comprises a multibeam transmitter configured for generating a plurality of measuring beams.

An auxiliary measuring instrument, configured to form together with a ground-based surveying device having range-and-direction measuring functionality, a system for surveying or staking out object points, wherein the auxiliary measuring instrument including a handheld main body of a defined length, and a man-machine interface, wherein the auxiliary measuring instrument is designed in a pen-like form and size and is configured to aim at an object point to be surveyed or staked out in a one-handed manner with a first end of the auxiliary measuring instrument and wherein a body is attached at a second end of the auxiliary measuring instrument, wherein the body is designed for optical-image-based determination of the position of the auxiliary measuring instrument by the surveying device.

Surveying system and auxiliary measuring device

A method comprising: setting up a stationary surveying device at a first known positioning in a surrounding area of the object; retrieving from a memory a set of object points of an object to be surveyed and/or to be marked; surveying and/or marking from a first positioning object points of the set of object points that can be surveyed and/or can be marked from the first positioning by means of the free beam, on the basis of a target direction; ascertaining missing object points of a set of object points; relocating the surveying device to a second, unknown positioning in the surrounding area of the object; automatically determining a second positioning by the surveying device on the basis of the knowledge of the first positioning, so that the second positioning is known; surveying and/or marking missing object points by means of the free beam from the second positioning.

Surveying system and auxiliary measuring instrument

A method for numerically compensating imaging errors caused by a geometrical deformation of a stereo camera is provided. An inertial variable vector is provided that is determined by an accelerometer, which inertial variable vector is expressed in a stereo camera coordinate system with a known geometrical relationship between the stereo camera coordinate system and the world coordinate system, and which inertial variable vector relates to a physical force which at least partly causes the geometrical deformation of the stereo camera. A calibrated analytic deformation model of the stereo camera is evaluated with the inertial variable vector as input. Updated external camera parameters are determined. The updated external camera parameters and known internal camera parameters of the two cameras are used for stereophotogrammetric analysis of images acquired by the stereo camera.

Model-based compensation of geometrical deformation of a stereo camera by evaluating a calibrated analytic deformation model of the stereo camera

A calibrating method and system for an auxiliary measuring instrument which is designed to form together with a ground-based, stationary, surveying device having range-and-direction measuring functionality, a total station, a system for surveying and/or staking out object points. The auxiliary measuring instrument including a body which has a code for determining the orientation by using a pivoting movement of the body about a resting contact end of the auxiliary measuring instrument.

A method and device for displaying desired positions in a live image of a construction site. The method mat include recording at least one position-referenced image of the construction site; linking at least one desired position to the position-referenced image; storing the position-referenced image together with desired position linkage in an electronic memory; recording a live image of the construction site, in particular in the form of a video, wherein the live image and the position-referenced image at least partially represent an identical detail of the construction site; retrieving the stored position-referenced image from the memory; fitting the position-referenced image with the live image, so that the desired position linked to the position-referenced image can be overlaid in a position-faithful manner on the live image; and position-faithful display of the desired position as a graphic marking in the live image.

Measurement method, measurement systems and auxiliary measurement instruments for displaying desired positions in a live image

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Hohenems, Austria

Jochen Scheja