Airborne laser scanning applied to eucalyptus stand inventory at individual tree level
نویسندگان
چکیده
منابع مشابه
Burned forest characterization at single-tree level with airborne laser scanning for assessing wildlife habitat
a Department of Land, Air and Water Resources, One Shields Avenue, University of California, Davis, CA, USA b University of Leicester, Centre for Landscape and Climate Research, University Road, Leicester, LE1 7RH, UK c Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA d The Institute for Bird Populations, Point Reyes Station, CA, USA e USDA Forest Service, ...
متن کاملIndividual Tree Detection and Area-based Approach in Retrieval of Forest Inventory Characteristics from Low-pulse Airborne Laser Scanning Data
The two main approaches to derive forest information from small-footprint laser scanner data are the statistical area-based approach (ABA) and individual tree detection (ITD). In the present study we tested the accuracies of two ABA estimation methods, namely the k-nearest neighbour (k-NN) and a LASSO regression (LASSO) with ITD. In the estimation a practical low-pulse density (1.8/m) airborne ...
متن کاملA Machine Learning Method for Co-Registration and Individual Tree Matching of Forest Inventory and Airborne Laser Scanning Data
Determining the exact position of a forest inventory plot—and hence the position of the sampled trees—is often hampered by a poor Global Navigation Satellite System (GNSS) signal quality beneath the forest canopy. Inaccurate geo-references hamper the performance of models that aim to retrieve useful information from spatially high remote sensing data (e.g., species classification or timber volu...
متن کاملSimulating Sampling Efficiency in Airborne Laser Scanning Based Forest Inventory
A simple simulator was developed to test whether airborne laser scanning can be used as a strip sampling tool for forest inventory purposes. The simulator is based on the existing two stages, grid based laser inventory procedure. A population of trees was created using an existing forest stand structure generator. Each tree was represented by means of its 3D-crown model derived from airborne la...
متن کاملAdvances in Forest Inventory Using Airborne Laser Scanning
We present two improvements for laser-based forest inventory. The first improvement is based on using last pulse data for tree detection. When trees overlap, the surface model between the trees corresponding to the first pulse stays high, whereas the corresponding model from the last pulse results in a drop in elevation, due to its better penetration between the trees. This drop in elevation ca...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Pesquisa Agropecuária Brasileira
سال: 2018
ISSN: 1678-3921,0100-204X
DOI: 10.1590/s0100-204x2018001200010