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Xsigno Digital Photogrammetry


Spatial measurement using digital photography

Photogrammetrie is a technique, which uses multiple views of an object to compute 3D coordinates, to measure distances or angles.

While most people are not aware of the term "photogrammetry", it is actually the oldest and the most natural technique of spatial measurement. The stereoscopic vision of our eyes is the natural heritage of this technique. In technical applications, the technique of photogrammetry developed with the introduction of photography and is a well established measurement technique in land measurement, archeology, architecture and industrial measurements.

Terrestrial photogrammetry was pioneered by the French military engineer Aimé Laussedat and the German architect Albrecht Meydenbauer in the midst of the 19th century. With the increased availability of digital photography, the technique of photogrammetry is an established measurement technology in cartography, architecture and industrial manufacturing.

How does it work?

A spatial measurement of an object or building is done by taking photographs from multiple views. The location and orientation of each view can be determined by placing an orientation plate into the field of view. Its spatial coordinate can be computed by marking a point of interest in multiple views.

What does Xsigno offer?

Xsigno provides an entry-level solution for photogrammetric measurements. It provides an orientation board and a software evaluating the measurement images. It provides the image processing algorithms to recognize the orientation board, to find the camera location and to compute the triangulation of the 3D measurement points.


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