Riegl Laser Measurement Systems Gmbh

Nikolaus Studnicka

Andreas Ullrich

Johannes Riegl

Rainer Reichert

Martin Pfennigbauer

Peter Rieger

Raoul Schild

Jürgen Nussbaum

The disclosed subject matter relates to a method for generating an orthogonal view of an object in a surrounding area, comprising the following steps: creating a location-based first 3D point cloud over a predefined angular range around a first location by way of a laser scanner; representing the object in a computer-generated representation; selecting a view direction and a view boundary in the computer-generated representation; projecting the first 3D point cloud, or a derived first 3D point cloud derived therefrom, counter to the view direction onto a plane defined by the view boundary; and outputting the first 3D point cloud, or the derived first 3D point cloud, projected onto the plane within the view boundary as an orthogonal view.

Method for generating an orthogonal view of an object

A process and an apparatus for measuring an object space using an opto-electronic range finder which operates according to a method of determining the time-of-flight of a signal comprise a first measuring step including transmitting optical transmitter signals in form of a beam of a predetermined first divergence angle, receiving optical signals reflected from an object and evaluating a distance value, while scanning the object space. After or before this first take-up step follows a second one wherein reference marks in the object space are taken up with a using an enlarged divergence angle so as to detect reliably the reference marks. The apparatus comprises, accordingly, appropriate devices for varying the divergence angle.

Process and apparatus for measuring an object space

A laser-based target detection system applicable to search and rescue operations takes into account a plurality of optical attributes in the energy delivered to, and received from, a target-containing area. In addition to analyzing the returned optical signature for sufficient energy reflected by a potential target at a primary laser wavelength, the system also senses the target's effect on a supplemental optical attribute. Only when sufficient amplitude at the primary wavelength is detected in conjunction with a substantial effect on the supplemental optical attribute is a valid target confirmed. The supplemental optical attribute can be amplitude at a wavelength other than the primary wavelength, with the system looking for a high degree of attenuation at the non-primary wavelength, or polarization. with the system preferably looking for change of orientation in the return optical signature. The system includes scan head chassis ( ) for transmitting energy to a target-containing area, electronic chassis ( ) for processing the received optical energy, laser pulse drive ( ), and laser cooler ( ).

Method for monitoring objects or an object area

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Vienna, Austria

Nikolaus Studnicka