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Tag: LiDAR

August 26, 2026

Towards Large-Scale TreeQSM Analysis: Overcoming Computational Bottlenecks

Last update: 2026-08-26 Working with high density point clouds of trees you quickly realize that you want to use quantitative structure models (QSM) to extract higher dimensional individual tree information from your 3D data. Basically there is no other technique to really describe the internal structural information in fully developed 3D point clouds of tree objects. Deep learning networks can...
Categories "forest decline"/Crown Structure/Forest decline/L2/LiDAR/Park3D/Point Clouds/QSM
May 27, 2026

The Deciduous Tree Crown Segmentation Challenge

  Last update: 2026-08-26 Deciduous tree crown segmentation is widely recognized as a particularly challenging task. While various approaches for conifer crown delineation have proven successful, their transferability to deciduous forest stands remains limited. Accurate crown segmentation constitutes a critical prerequisite for assessing the vitality of individual deciduous trees based on spectral or structural metrics. In particular, in dense deciduous...
Categories L2/LiDAR/Park3D/Point Clouds/Uncategorized
November 5, 2025

DJIs new UAV Lidar System – the L3

DJI has recently announced the release of its new UAV LiDAR system — the DJI Zenmuse L3. For those engaged in UAV-based LiDAR research and applications, this long-anticipated successor to the L2 represents a significant technological advancement. The cost of professional-grade airborne LiDAR systems with high-accuracy capabilities has remained relatively stable over the past years. For example, some of the...
Categories Crown Structure/Forest decline/LiDAR/Park3D/Point Clouds/Quadrocopter/Workflow
June 20, 2025

FSU Jena wins the SPSG Park3D Project! Updated

  First L2 LiDAR data capture over Park Sanssouci – (2025-07-20)  Priority was on detailed and dense vegetation point clouds. The L2 was used in 120m AGL with 240khz capture rate and 5-returns activated and 70% track overlap at 8m/s speed.  We generated a 2.4billion point cloud description. The following animation is from a downsampled version of only 500 mio...
Categories Crown Structure/Forest decline/L2/LiDAR/Park3D/Point Clouds/Quadrocopter/Workflow