International building extraction comparison

International building extraction comparison

Under the EuroSDR Commission III “Production Systems and Processes”, a joint test was undertaken in order to compare various methods of building extraction using airborne image and laser scanning data. The study was initiated due to the fast development of sensors and...

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International tree extraction comparison

International tree extraction comparison

The Finnish Geodetic Institute coordinated the EuroSDR/ISPRS Tree Extraction project comparing various methods of tree extraction using airborne image and laser scanning data. 12 partners from Germany, Sweden, Canada, Austria, Finland, Norway, Taiwan, USA,...

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Forester of the year 2012: Dr. Mikko Vastaranta

Forester of the year 2012: Dr. Mikko Vastaranta

Dr. Mikko Vastaranta received his M. Sc. and PhD in Forestry from University of Helsinki (UH) in 2007 and 2012, respectively. Since 2007 he has been part of 4D GeoScientists crew at UH. In five years, he has published more than 50 peer reviewed scientific articles and...

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Method to retrieve stem volume

Method to retrieve stem volume

In the boreal forest zone and in many forest areas, there exist gaps between the forest crowns. For example, in Finland, more than 30% of the first pulse data of laser scanning reflect directly from the ground without any interaction with the canopy. By increasing the...

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