搜索结果: 1-15 共查到“测绘科学技术 canopy”相关记录54条 . 查询时间(0.056 秒)
FULLY AUTOMATED GIS-BASED INDIVIDUAL TREE CROWN DELINEATION BASED ON CURVATURE VALUES FROM A LIDAR DERIVED CANOPY HEIGHT MODEL IN A CONIFEROUS PLANTATION
Crown Delineation Canopy Height Model (CHM) Local Maxima Curvature Slope Thiessen Polygons
2016/11/30
The generation of high resolution canopy height model (CHM) from LiDAR makes it possible to delineate individual tree crown by means of a fully-automated method using the CHM’s curvature through its s...
EVALUATION OF FOREST CANOPY AND UNDERSTORY GAP FRACTION DERIVED FROM TERRESTRIAL LASER SCANNING
Forest structure Understory Gap fraction Terrestrial laser scanner
2016/11/30
The quantification of forest carbon sequestration is helpful to understand the carbon storage on the Earth. The estimation of forest carbon sequestration can be achieved by the use of leaf area index ...
TREE CANOPY COVER MAPPING USING LiDAR IN URBAN BARANGAYS OF CEBU CITY,CENTRAL PHILIPPINES
Object-Based Image Analysis LAStools CHM NDSM multi-threshold segmentation urban forest management urban planning
2016/11/30
This paper investigates tree canopy cover mapping of urban barangays (smallest administrative division in the Philippines) in Cebu City using LiDAR (Light Detection and Ranging). Object-Based Image An...
EVALUATING DENSE 3D RECONSTRUCTION SOFTWARE PACKAGES FOR OBLIQUE MONITORING OF CROP CANOPY SURFACE
structure-from-motion csm crop surface monitoring 3D oblique vegetation monitoring comparison
2016/11/11
Crop Surface Models (CSMs) are 2.5D raster surfaces representing absolute plant canopy height. Using multiple CMSs generated from data acquired at multiple time steps, a crop surface monitoring is ena...
DERIVING LAND USE AND CANOPY COVER FACTOR FROM REMOTE SENSING AND FIELD DATA IN INACCESSIBLE MOUNTAINOUS TERRAIN FOR USE IN SOIL EROSION MODELLING
Illumination variations correction of topography induced constrains Canopy cover factor estimation NDVI
2016/1/3
Soil erosion is one of the severe land degradation problems in many parts of the world. It not only affects on decreasing agricultural productivity but also it causes disasters such as siltation of re...
ANALYSIS ON OPTIMAL BANDS FOR RETRIEVAL OF MIXED CANOPY CHLOROPHYLL CONTENT BASED ON REMOTE SENSING
Spectral indices Chlorophyll content Spectral derivative Optimal bands Mixed canopy
2016/1/3
A large number of spectral indices have been developed for estimation of leaf chlorophyll content. However, in most cases these indices have been tested for only one or at most a few related species a...
RETRIEVALS OF CANOPY BIOPHYSICAL VARIABLES USING MULTI-TEMPORAL REMOTE SENSING DATA
Remote Sensing Retrieval Leaf area index Multi-temporal
2015/12/31
The integrated application of multi-source and multi-temporal remote sensing data is the trend of remote sensing application research, and it is also the practical need to solve the inversion problem ...
DISCRIMINATING SPECIES USING HYPERSPECTRAL INDICES AT LEAF AND CANOPY SCALES
Imaging Spectroscopy Spectral Indices Species Discrimination Leaf and Canopy Remote Sensing
2015/12/31
Developments in hyperspectral remote sensing have provided new indices or indicators of biochemical and biophysical properties. Most of the studies involving the novel spectral indices have been condu...
GEOMETRICAL AND STRUCTURAL PARAMETERIZATION OF FOREST CANOPY RADIATIVE TRANSFER BY LIDAR MEASUREMENTS
Remote Sensing Forestry LIDAR Vegetation Modelling Structure
2015/12/30
A forest canopy is a complex system with a highly structural multi-scale architecture. Physical based radiative transfer (RT) modelling has been shown to be an effective tool for retrieval of vegetati...
A MODELING APPROACH FOR STUDYING FOREST CHLOROPHYLL CONTENT IN RELATION TO CANOPY COMPOSITION
Chlorophyll Content Non-Photosynthetic Vegetation PROSPECT FLIGHT Canopy Structure Woody Elements
2015/12/30
Foliar concentration of the main photosynthetic pigments chlorophyll a and b (Cab) is widely regarded as a generic bioindicator of the actual plant status. However, when the scale moves up to stand le...
POTENTIAL AND LIMITS OF AIRBORNE REMOTE SENSING DATA FOR EXTRACTION OF FRACTIONAL CANOPY COVER AND FOREST STANDS AND DETECTION OF TREE SPECIES
Forestry Ecosystem LIDAR Modelling DEM/DTM Aerial High resolution Multisensor
2015/12/29
This study presents a methodology for derivation of fractional canopy cover, detection of main tree species, and extraction of forest stands using logistic regression, airborne remote sensing data and...
FOREST CANOPY DENSITY ESTIMATING,USING SATELLITE IMAGES
Remote Sensing Accuracy IRS imagery Forest Canopy density Classification
2015/12/28
Forest Canopy density is a major factor in evaluation of forest status and is an important indicator of possible management interventions. Forest canopy cover, also known as canopy coverage or crown c...
ESTIMATING CANOPY HEIGHT OF MONTANE COOL TEMPERATE FOREST USING LARGE-FOOTPRINT SPACEBORNE LIDAR
LiDAR Forest Canopy height Estimation Model
2015/12/28
Estimation of forest carbon storage is a critical challenge for understanding the global carbon cycle because it dominates the dynamics of the terrestrial carbon cycle. Light Detection and Ranging (Li...
INVISTIGATION ON CANOPY HEIGHT AND DENSITY DIFFERENTIATIONS IN THE MANAGED AND UNMANAGED FOREST STANDS USING LIDAR DATA (CASE STUDY: SHASTKALATEH FOREST, GORGAN)
Canopy height Canopy density Lidar Managed forest Unmanaged forest Dr. Bahramnia forest plan of Gorgan
2016/1/18
Forest management plans are interesting to keep the forest stand natural composite and structure after silvicultural and management treatments. In order to investigate on stand differences made by man...
Canopy Extraction Using Airborne Laser Scanning Data in Forestry Areas
Forestry Extraction Estimation Photogrammetry Laser scanning Radar
2015/12/8
To understand the biomass condition in the forestry areas, the detection for individual trees becomes an important topic. For forestry management, the canopy may be described with several parameters, ...