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Technik & Industrie

 

Close-range photogrammetry

3D objects in the focus of geomatics

If buildings, artificial structures, rock faces, machines, sculptures and other three-dimensional objects have to be planned, estimated or recorded the geomatics plays an important role. Its 3D measurement techniques are the basis for a survey of existing buildings, plans of facades and the preservation of cultural heritage amongst others.

Close-range photogrammetry deals with objects in the range of a few centimeters up to about hundred meters. User-defined positions for photographic mapping are applied as developed when taking pictures of an object by a handheld camera from different directions. Often lifting platforms or telescop masts have to be used to document the object as much as possible. As a general rule high resolution digital cameras are in use today.

The specific field of close range-photogrammetry has become more and more important in the last years with increasing application of digital picture recording and processing techniques and has been developed in industrial branches to a highly recognized and capable measurement process. By means of mostly automated processing of digital pictures, often combined with CAD techniques it is possible to do the acquisition of three-dimensional data in a very economic and detailed way.

Many application fields of close-range photogrammetry can be found in industrial measurement techniques, medicine, biomechanics and reporting of accidents. In architecture and archeology close-range photogrammetry is of use for building applications, for documentation of object as basis for reconstruction of historical monuments.

Important auxiliary products of close-range photogrammetry are rectified images. These rectified images of almost plane objects like facades are converted to a flat so that the distances in the image can be calculated with a simple scale to metric lengths and distances.

Actually modern cinematography has transferred techniques of photogrammetry. In the movie Fight Club interesting camera views could be performed with these techniques.

Climate & environment

What happens where while it is getting warmer? How does our environment change? Where does sea level rise come from? Are the continents drying out? Are the continental plates still sliding on top of each other as they did in the past? - Geomatics engineers measure changes and answer questions.

 
Real estate

Everyone has seen geomatics engineers in the field. Using their instruments they sometimes work at the roadside. Car drivers slow down, thinking of speed control. Children stop by craving for the colorful security jackets. - But what are the engineers really doing there?

 
Technology & industry

How is it possible that we don't miss each other when boring a tunnel from two sides? Why is the shelf at home always crooked but the 300 m high building bolt upright? - Because geomatics engineers take care of it.

 
Navigation & Mobility

In the past, the front passenger said: "There should be a right turn soon." Today, this is not enough anymore. Dead-ends, new roundabouts, nearby points of interest – a modern navigation system seems to know everything. - If it does, this is just due to geomatics…