Results 81 to 90 of about 52,927 (253)
Classification of airborne laser scanning point clouds based on binomial logistic regression analysis [PDF]
, 2014 This article presents a newly developed procedure for the classification of airborne laser scanning (ALS) point clouds, based on binomial logistic regression analysis. By using a feature space containing a large number of adaptable geometrical parameters,
Briese, Christian +6 more
core +2 more sources
TreeON: Reconstructing 3D Tree Point Clouds from Orthophotos and Heightmaps
Computer Graphics Forum, EarlyView.Abstract We present TreeON, a novel neural‐based framework for reconstructing detailed 3D tree point clouds from sparse top‐down geodata, using only a single orthophoto and its corresponding Digital Surface Model (DSM). Our method introduces a new training supervision strategy that combines both geometric supervision and a differentiable shadow and ...
Angeliki Grammatikaki +4 more
wiley +1 more source
Pulsed Doppler lidar for the detection of turbulence in clear air [PDF]
A pulsed C02 Doppler lidar system is described and demonstration tests in ground-based and airborne flight operations are discussed. As a ground-based system, it can detect wind shears in thunderstorm gust fronts to a range of 6 km.
Bilbro, J. W. +6 more
core +1 more source
Multiangle observations of Arctic clouds from FIRE ACE: June 3, 1998, case study [PDF]
, 2001 In May and June 1998 the Airborne Multiangle Imaging Spectroradiometer (AirMISR) participated in the FIRE Arctic Cloud Experiment (ACE). AirMISR is an airborne instrument for obtaining multiangle imagery similar to that of the satellite-borne MISR ...
Ackerman, TP +6 more
core +1 more source
Survey on differential estimators for 3d point clouds
Computer Graphics Forum, EarlyView.Abstract Recent advancements in 3D scanning technologies, including LiDAR and photogrammetry, have enabled the precise digital replication of real‐world objects. These methods are widely used in fields such as GIS, robotics, and cultural heritage. However, the point clouds generated by such scans are often noisy and unstructured, posing challenges for ...
Léo Arnal–Anger +4 more
wiley +1 more source
Remote Sensing, 2017 Few airborne aerosol research experiments have deployed N2-Raman Lidar despite its capability to retrieve aerosol optical properties without ambiguity.
Patrick Chazette, Julien Totems
doaj +1 more source
Predicting growing stock volume of Eucalyptus plantations using 3-D point clouds derived from UAV imagery and ALS data [PDF]
, 2019 Estimating forest inventory variables is important in monitoring forest resources and mitigating climate change. In this respect, forest managers require flexible, non-destructive methods for estimating volume and biomass.
Botequim, Brigite +8 more
core +2 more sources
Evaluation of drone system for thinning operations–a case study in Sweden
International Transactions in Operational Research, EarlyView.Abstract Thinning operations in forestry typically involve a two‐machine system (TMS) with a harvester and a forwarder. Its productivity in different forest conditions is well documented. To date, drones have been used for data collection and surveillance but not as an alternative to a TMS.
Mikael Rönnqvist +3 more
wiley +1 more source
Surface-Based Registration of Airborne and Terrestrial Mobile LiDAR Point Clouds
Remote Sensing, 2014 Light Detection and Ranging (LiDAR) is an active sensor that can effectively acquire a large number of three-dimensional (3-D) points. LiDAR systems can be equipped on different platforms for different applications, but to integrate the data, point cloud
Tee-Ann Teo, Shih-Han Huang
doaj +1 more source
The NCAR Airborne Infrared Lidar System (NAILS) [PDF]
, 1986 A planned airborne lidar system is presented which is intended to provide a remote sensing facility for a variety of applications. The eventual goal of the system development is a Doppler wind measurement capability for boundary layer dynamics and cloud ...
Lightsey, P. A., Schwiesow, R. L.
core +1 more source