This paper focuses on an adaptive multi-resolutional algorithm for generating forest floor digital elevation models by processing the three dimensional data acquired by the laser scanner. The adaptivity of our algorithm ensures that it can be used successfully in flat, hilly, and mountainous terrain and deliver accurate results. A large set of GPS ground reference points are used to verify the algorithm along with others commonly used. First results show that the average error is between 0,5 and 1m for an Alpine region in Austria which is very close to the error the laser scanner data distributor claims for flat terrain. This study is part of the HIGH-SCAN project (EU IV Framework/Center of Earth Observation), a project whose objective is to provide methods to integrate high satellite imagery and laser scanner data for forest inventory.
Proceedings of SPIE – SPIE
Published: Sep 5, 2000
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