搜索结果: 91-105 共查到“摄影测量与遥感技术 airborne”相关记录258条 . 查询时间(0.069 秒)
Recent Advances in Airborne InSAR for 3D Applications
DEM DSM DTM InSAR Interferometric SAR Mapping
font style='font-size:12px;'>
2015/11/20
The objective of this paper is to provide an update on two programs which have been evolving recently that will have significant impact on several geomatics application areas requiring 3D information ...
WAVEFORM ANALYSIS TECHNIQUES IN AIRBORNE LASER SCANNING
LIDAR Waveform Analysis Pulse detection Decomposition Deconvolution Point cloud
font style='font-size:12px;'>
2015/11/10
Small-footprint airborne laser scanners with waveform-digitising capabilities are becoming increasingly available. Waveformdigitising is particularly advantageous when the backscattered echo waveform ...
EXTRACTING STRUCTURAL CHARACTERISTICS OF DORMANT HERBACEOUS FLOODPLAIN VEGETATION FROM AIRBORNE LASER SCANNER DATA
Floodplains, Herbaceous vegetation Leaf-off vegetation height vegetation density
font style='font-size:12px;'>
2015/11/10
To map spatial patterns of floodplain vegetation structure for hydrodynamic modelling, airborne laser scanning is a promising tool. In a test for the lower Rhine floodplain, vegetation height and dens...
ESTIMATION OF CARBON STOCKS IN NEW ZEALAND PLANTED FORESTS USING AIRBORNE SCANNING LIDAR
Kyoto Protocol forest inventory sampling carbon models
font style='font-size:12px;'>
2015/11/10
To meet obligations under Article 3.3 of the Kyoto Protocol, New Zealand is required to estimate, in an unbiased manner, forest carbon stock change, over the Protocol’s first commitment period (2008-2...
GEOMETRICAL ASPECTS OF AIRBORNE LASER SCANNING AND TERRESTRIAL LASER SCANNING
Airborne Laser Scanning Terrestrial Laser Scanning LiDAR Geometry Orientation Registration Segmentation Calibration Digital Terrain Model DTM
font style='font-size:12px;'>
2015/11/10
This paper reviews the current state of laser scanning from airborne and terrestrial platforms for geometric reconstruction of object shape and size. The current performance figures of sensor systems ...
RAY TRACING FOR MODELING OF SMALL FOOTPRINT AIRBORNE LASER SCANNING RETURNS
RAY TRACING FOR MODELING SMALL FOOTPRINT AIRBORNE LASER SCANNING RETURNS
font style='font-size:12px;'>
2015/11/10
Airborne Laser Scanning (ALS) has been established as a valuable tool for the estimation of biophysical canopy variables, such as tree height and vegetation density. However, up to now most approaches...
UTILIZING AIRBORNE LASER INTENSITY FOR TREE SPECIES CLASSIFICATION
Laser scanning High resolution Forest Inventory Analysis Classification
font style='font-size:12px;'>
2015/11/10
High-resolution datasets from Airborne Laser Scanning (ALS) provide information to extract the outline of single tree crowns. Laser echoes with spatial coordinates inside these single-tree crowns give...
DETECTION AND RECONSTRUCTION OF FREE FORM SURFACES FROM AIRBORNE LASER SCANNING DATA
LiDAR City modeling Building reconstruction Free Form Curved Surfaces
font style='font-size:12px;'>
2015/11/10
Building reconstruction from LiDAR data offers promising prospects for rapid generation of large-scale 3D models in an autonomous manner. Such reconstruction requires knowledge on a variety of paramet...
SIMULATING SAMPLING EFFICIENCY IN AIRBORNE LASER SCANNING BASED FOREST INVENTORY
Airborne laser scanner Simulator Forest inventory
font style='font-size:12px;'>
2015/11/10
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 base...
ICESAT FULL WAVEFORM ALTIMETRY COMPARED TO AIRBORNE LASER ALTIMETRY OVER THE NETHERLANDS
Full waveform DTM AHN Laser altimetry ICESat
font style='font-size:12px;'>
2015/11/10
Since 2003 the spaceborne laser altimetry system on board of NASA’s Ice, Cloud and land Elevation Satellite (ICESat) has acquired a large world-wide database of full waveform data organized in 15 prod...
USING AIRBORNE LIDAR FOR THE ASSESSMENT OF CANOPY STRUCTURE INFLUENCES ON CO2 FLUXES
airborne lidar carbon dioxide eddy covariance flux footprint canopy structure photosynthesis respiration
font style='font-size:12px;'>
2015/11/10
Fluxes of carbon dioxide (CO2), water, and energy measured using the eddy covariance method (EC) will vary spatially and temporally within the catchment area of the EC system, especially if parts of t...
A MIXED-EFFECTS MODEL TO ESTIMATE STAND VOLUME BY MEANS OF SMALL FOOTPRINT AIRBORNE LIDAR DATA FOR AN AMERICAN AND A GERMAN STUDY SITE
Mixed-effects models random effects lidar forest inventory stand volume
font style='font-size:12px;'>
2015/11/10
Similar datasets (inventory plots, stand maps and lidar data) were available for study sites in the USA and Germany. These datasets are grouped or hierarchical in that several sample plots are located...
USING AIRBORNE SMALL-FOOTPRINT LASER SCANNER TO ASSESS THE QUANTITY OF SEEDLINGS IN AN UNEVEN-AGED SPRUCE FOREST
Regeneration uneven-aged forest laser scanner data canopy structure
font style='font-size:12px;'>
2015/11/10
The relationships between measures of forest structure as derived from airborne laser scanner data and the variation in quantity of young trees established by natural regeneration in a size-diverse sp...
VALIDATION OF AIRBORNE LIDAR INTENSITY VALUES FROM A FORESTED LANDSCAPE USING HYMAP DATA:PRELIMINARY ANALYSES
Lidar intensity interpolation coniferous deciduous validation HyMap canopy height model
font style='font-size:12px;'>
2015/11/10
There is a growing body of literature that points to the value of using the intensity measures of the backscattered laser light in addition to the pulse range measurements for studying a range of envi...
USE OF VERY HIGH-RESOLUTION AIRBORNE IMAGES TO ANALYSE 3D CANOPY ARCHITECTURE OF A VINEYARD
Vectorization of vine rows High-resolution DSM High-resolution images Drone UAV
font style='font-size:12px;'>
2015/9/21
Differencing between green cover and grape canopy is a challenge for vigour status evaluation in viticulture. This paper presents the acquisition methodology of very high-resolution images (4 cm), usi...