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Comparing small-footprint lidar and forest inventory data for single strata bio...
Ferraz, A.; Gonçalves, G.; Soares, P; Tomé, M.; Mallet, C.; Jacquemoud, S.; Bretar, F.; Pereira, L.Current methods for accurately estimating vegetation biomass with remote sensing data require extensive, representative and time consuming field measurements to calibrate the sensor signal. In addition, such techniques focus on the topmost vegetation canopy and thus they are of little use over multi-layered forest ecosystems where the underneath strata hold considerable amounts of biomass. This work is the firs...
3D segmentation of forest structure using an adaptive mean shift based procedure
Ferraz, A.; Bretar, F.; Jacquemoud, S.; Gonçalves, G.; Gomes Pereira, L.Plant communities display a vertical structure based on the size and growth pattern of the dominant species. To a large extent, this pattern, called vertical stratification, depends on the climatic zone. Vertical structure analysis consists in detecting the number of layers and their limits within a forest stand. So far, there is a lack of robust approaches applied to airborne laser scanning (ALS) data that pro...
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