Leica Geosystems Ag

Hexagon Technology Center Gmbh

Novatel Inc.

Beamrider Limited

Bernd Walser

Bernhard Metzler

Beat Aebischer

Knut Siercks

Bo Pettersson

Jürg Hinderling

Peter Kipfer

Christian Betschon

Marco Schröder

Bianca Gordon

Bernhard Braunecker

Juerg Hinderling

Kristian Morin

Andreas Schwendener

Benjamin Seifert

Iain McGuffie

Daniel Blaser

Richard Fetzel

Gert Ferrano

Jeremy Nicholls

A method for colourising a three-dimensional point cloud including surveying a point cloud with a surveying instrument. Each point of the point cloud may be characterised by coordinates within an instrument coordinate system having an instrument center. The method may include capturing a first image of the setting with a first camera. Each pixel value of the first image is assigned coordinates within a first camera coordinate system having a first projection center as origin and a first parallax shift relative to the instrument center. The method may include transforming the point cloud from the instrument coordinate system into the first camera coordinate system, resulting in a first transformed point cloud, detecting one or more uncovered points within the first transformed point cloud which are openly visible from the first projection center, and for each uncovered point, assigning a pixel value having corresponding coordinates in the first camera coordinate system.

Method and device for inpainting of colourised three-dimensional point clouds

A surveying device including a base defining a base axis (A), a support structure defining a rotation axis (B), a light emitting unit, a light receiving unit detecting reflected measuring light, and a rotation unit including a rotation body including at least one scanning mirror arranged tilted relative to the rotation axis (B) and a curved deflecting element different from the scanning surface. The surveying device also includes an imaging unit including a camera sensor which is fixedly arranged so that an optical axis of the camera sensor is directed towards the rotation body, such that only in a predetermined imaging-alignment of the rotation body around the rotation axis (B) the optical axis of the at least one camera sensor is deflected by the curved deflecting element by a desired angle and direction so that the field of view comprises a defined field angle around the rotation axis (B).

Surveying instrument for scanning an object and image acquistion of the object

A device having a scan function comprising an electro-optical distance measuring element having a laser axis as the target axis, a motorized optical deflection unit, which deflects the target axis by a deflection angle, and an angle measuring element for determining at least one angular position of the deflection unit. First measurement of angle coordinates of a reticle in a first angular position of the deflection unit as the first position, and second measurement of angle coordinates of the reticle in a second angular position of the deflection unit as the second position. The first and second measurements of the reticle are carried out on the basis of images taken with a camera, the optical axis of which is deflected by the deflection unit, and calibration parameters are determined on the basis of the angular positions and the angular coordinates in the first and second positions.

Calibration method for a device having a scan function

The invention relates to a method for correcting a distortion in an aerial photograph caused by a flight movement in the forward direction. The aerial photograph is captured by a surface sensor, the sensor lines of which sensor are exposed at different, successive exposure times, so that each individual sensor line senses a strip of terrain of the terrain flow over at the different exposure times. A relative flight altitude above the strips of terrain captured by the respective sensor line is assigned to the individual sensor lines. Furthermore, a compensation factor is separately determined for each of the individual sensor lines, wherein the factor depends on an air speed of the flying object, a focal length of the aerial camera and the relative flight altitude assigned to the respective sensor line, and corrects the distortion in the aerial photograph for the lines based on the respective compensation factor.

Aerial camera system and method for correcting distortions in an aerial photograph

According to the invention, the calibration measuring cycle is divided into several, particularly a plurality of partial cycles, with which one or more of the calibration measurements are associated. While maintaining the cycle, the partial cycles are now carried out in one of the positioning pauses such that the calibration measuring cycle is distributed over several, in particular a plurality of, positioning pauses and is integrated into the flow of the industrial process without interfering with the same.

Calibration method for a measuring system

An object is highly precisely moved by an industrial robot to an end position by the following steps, which are repeated until the end position is reached within a specified tolerance: Recording a three-dimensional image by means of a 3-D image recording device. Determining the present position of the object in the spatial coordinate system from the position of the 3-D image recording device the angular orientation of the 3-D image recording device detected by an angle measuring unit, the three-dimensional image, and the knowledge of features on the object. Calculating the position difference between the present position of the object and the end position. Calculating a new target position of the industrial robot while taking into consideration the compensation value from the present position of the industrial robot and a value linked to the position difference. Moving the industrial robot to the new target position.

Method and system for highly precisely positioning at least one object in an end position in space

An application controller for an application unit, for marking substances comprises a radiation sensor, by means of which the relative position of the application unit relative to a reference plane may be determined. The relative position of the application unit can be determined by means for recording the orientation of the application unit controller relative to the reference plane from the association of position with orientation information, such that control instructions, in particular for positional correction may be generated by the application unit controller. The position of the application unit can be adjusted by an actuator device according to the control instructions.

Application controller

The invention relates to a method and a system for the high-precision positioning of at least one object in a final location in space. An object () is gripped and held by the industrial robot () within a gripping tolerance. A compensating variable, which corrects the gripping tolerance, is determined for the industrial robot (). The object () is adjusted with high precision into a final location by the following steps, which repeat until reaching the final location at a predetermined tolerance: recording of image recordings by recording units (); determining the current location of the object () in the spatial coordinate system from the positions (P, P) of the recording units (), the angular orientations of cameras () of the recording units () which are detected by angle measuring units (), the image recordings, and the knowledge of features () on the object (); calculating the location difference between the current location of the object () and the final location; calculating a new target position of the industrial robot () in consideration of the compensating variable from the current position of the industrial robot () and a variable which is linked to the location difference; adjusting the industrial robot () into the new target position.

Method and system for the high-precision positioning of at least one object in a final location in space

A reference beam generator () for guiding a marking machine, which can be moved in relation to the reference beam generator (), for producing ground markings has a support element with at least three adjustable legs () as positioning elements relative to the surface of the ground (EOB) and a source of electromagnetic radiation for generating a first and a second guide beam which is emitted with a prespecified opening angle in a fan-shaped manner. In this case, two legs () of the at least three adjustable legs () can be adjusted by an adjusting component in an associated manner in opposite directions.

Reference beam generator for generating guide beams for marking machines

The invention relates to a method for the geodesical measurement of an object (), using a geodesical measuring appliance () comprising recording means () for acquiring a recorded image () at least of the object (1) to be geodesically measured. Once the angular orientation of a coverage strip () of the recording means () has been determined, the image () is captured and represented at least partially in the form of a display image (). A set of recorded image co-ordinates () are determined by establishing at least one set of associated display image co-ordinates (), and the set of recorded image co-ordinates () is transformed into at least one geodesical measuring variable, especially a solid angle. Templates (10) which are in the form of models that can be placed on the display image and at least partially describe the object () are used to support the user during the fixing of the target point. Once the template () has been selected and positioned, it is adapted to the recorded object () and determines the set of recorded image co-ordinates () by means of a characteristic point () of the template (). The invention also relates to an electronic display and control device (), a geodesical measuring appliance (), and a computer program product for carrying out the method.

Method and device for image processing in a geodetic measuring instrument

A reference beam generator () for guiding a field marker for ground markings has a support element () which can be positioned in a defined manner relative to the Earth's surface, a laser diode and beam guidance means for the emission of the radiation (LS) to at least one reference target (), the radiation (LS) being emitted with an asymmetrical beam cross-section (), in particular in the form of a fan, and the beam guidance means being adjustable in a defined manner relative to the support element (). The radiation (LS) can be aligned with the reference target () by an optical detection component for detecting and providing the radiation reflected by the reference target, in particular a telescope ().

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Heerbrugg, Switzerland

Bernd Walser