Research Projects

TIDE
 

Lagoon near Venice
© EU-project TIDE

The main objective of the TIDE project is the development and validation of comprehensive models of morphological and ecological dynamics in tidal embayments and saltmarshs.
TopoSys has surveyed a part of the project area three times for monitoring purposes. The high resolution laser data from TopoSys provides a basis for analyses of interactions between landforms and ecosystem structure as well as for classification techniques.

Highscan
  Within the framework of the Highscan EU project, research institutes in Germany, Austria, Switzerland and Finland have developed a forest inventory method using high-resolution satellite and laserscanner data. Parameters such as tree height, mean stand height, stand density, crown area and timber volume were successfully extracted from the laserscanner data to assess forest stands for forest inventories. The results show that the accuracy obtained is significantly better than that attained by conventional methods and field inventories. Especial advantages of the laserscanning technology are the high pulse rate and high rate of penetration of the vegetation.
 

Color-coded tree heights
© HUT, Finland



3D model of a woodland area
© HUT, Finland


Natscan
  The central point of interest of the Natscan project is the study of advanced laserscanning methods and their adaptation to the requirements of environmental monitoring. To formulate a two-phase laser-assisted inventory system, data of airborne laserscanning systems is integrated with detailed scans from a terrestrial platform for recording environmentally relevant information with high precision. At present, parameters for the environmental monitoring sector are acquired terrestrially with the aid of aerial photographs and satellite images or by extrapolating former inventories. These methods are highly time-consuming and cost-intensive and often deliver insufficiently accurate or out-of-date results.
Within the framework of Natscan, existing laserscanner systems are modified and GIS-compatible analysis programs are developed for forest inventories and for planning power line corridors. TopoSys, as a partner in the Natscan project is enhancing its laserscanning system and delivers high-resolution data records with uniform distribution of the measurement values in the swing mode (fiber scanner and scan pattern).

The remote sensing and geographical information systems department of the University of Freiburg, Germany (FELIS), develops algorithms for 3D object recognition, image analysis, measurement and visualization of the terrain surface and objects on it, on the basis of the laserscanner and image data of TopoSys GmbH, particularly for forest management.
 

Segmentation of crown area and tree centers
© Natscan project, University of Freiburg, Germany

 

Classification in deciduous and coniferous trees
© Natscan project, University of Freiburg, Germany



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