搜索结果: 1-15 共查到“测绘科学技术 trees”相关记录34条 . 查询时间(0.195 秒)
FROM TLS POINT CLOUDS TO 3D MODELS OF TREES: A COMPARISON OF EXISTING ALGORITHMS FOR 3D TREE RECONSTRUCTION
Trees Terrestrial Laser Scanner Point Cloud 3D Model Reconstruction Algorithm Assessment Accuracy
2017/4/5
3D models of tree geometry are important for numerous studies, such as for urban planning or agricultural studies. In climatology, tree models can be necessary for simulating the cooling effect of tre...
ESTIMATING DBH OF TREES EMPLOYING MULTIPLE LINEAR REGRESSION OF THE BEST LIDAR-DERIVED PARAMETER COMBINATION AUTOMATED IN PYTHON IN A NATURAL BROADLEAF FOREST IN THE PHILIPPINES
DBH Estimation ALS Multiple Linear Regression Python Broadleaf Forest Forestry
2016/11/30
Diameter-at-Breast-Height Estimation is a prerequisite in various allometric equations estimating important forestry indices like stem volume, basal area, biomass and carbon stock. LiDAR Technology ha...
ACCURACY ASSESSMENT OF CROWN DELINEATION METHODS FOR THE INDIVIDUAL TREES USING LIDAR DATA
Forest Canopy LiDAR Pit-free Stand-level
2016/11/30
Forest canopy density and height are used as variables in a number of environmental applications, including the estimation of biomass, forest extent and condition, and biodiversity. The airborne Light...
IMPACT OF LEVEL OF DETAILS IN THE 3D RECONSTRUCTION OF TREES FOR MICROCLIMATE MODELING
Urban climate Trees Terrestrial laser scanner Point cloud 3D reconstruction Leaves Evapotranspiration Level of details
2016/11/30
In the 21st century, urban areas undergo specific climatic conditions like urban heat islands which frequency and intensity increase over the years. Towards the understanding and the monitoring of the...
ESTIMATING WOOD VOLUME FOR PINUS BRUTIA TREES IN FOREST STANDS FROM QUICKBIRD-2 IMAGERY
Quickbird-2 Marker-controlled watershed segmentation Object-based classification Tree wood volume Individual tree crown delineation
2016/11/23
Knowledge of forest parameters, such as wood volume, is required for a sustainable forest management. Collecting such information in the field is laborious and even not feasible in inaccessible areas....
THE POTENTIAL OF GIS AS A MANAGEMENT TOOL FOR AVENUE TREES POPULATION IN SMALL COMMUNITIES; A CASE STUDY OF IDI-SHIN COMMUNITY, IBADAN, NIGERIA
GIS Avenue Trees Urban Forest
2016/11/15
This study demonstrates the potentials of Geographic Information System (GIS) as a management tool for avenue trees (Street trees) populations in small communities (using Idi-Ishin community, Ibadan, ...
Aerial photographs of forest trees details
Aerial Photographs Forestry experimental Plots physiotogical Activity
2016/5/20
The aerial photographs showing details of forest trees, e.g. young shoots, leaves, flowers, fruit, twigs and parts of the trunk, partly displayed the forest soil and the plants in the undergrowth laye...
ACCURACY OF CROWN SEGMENTATION AND ESTIMATION OF SELECTED TREES AND FOREST STAND PARAMETERS IN ORDER TO RESOLUTION OF USED DSM AND NDSM MODELS GENERATED FROM DENSE SMALL FOOTPRINT LIDAR DATA
Airborne Scanner System Segmentation Aerial photogrammetry Comparative analysis Forestry
2015/12/23
The purpose of this study is to categorize how different surface model resolutions impact the estimation of trees and forest stands parameters: number of recognized trees, crown area, treetop location...
PREDICTION OF WIND SPEEDS BASED ON DIGITAL ELEVATION MODELS USING BOOSTED REGRESSION TREES
Digital Elevation Model Wind Speed Non-Parametric Regression
2016/1/15
In this paper a new approach is presented to predict maximum wind speeds using Gradient Boosted Regression Trees (GBRT). GBRT are a non-parametric regression technique used in various applications, su...
Terrestrial Image Based 3D Extraction of Urban Unfoliaged Trees of Different Branching Types
Image Understanding 3-D Feature Extraction Computer Vision
2015/12/4
In this paper we propose extensions to a generative statistical approach for three-dimensional (3D) extraction of urban unfoliaged trees of different branching types from terrestrial wide-baseline ima...
Model Tropical Legume Trees for Reversing Soil Degradation as a Solution for Increasing Rural Farmers Income by GIS Analysis
Photogrammetry GIS Agriculture Crop Soil Developing Countries Change Detection Prediction
2015/12/2
Poverty in rural areas of developing countries is one of the major global issues. Economic growth in rural areas of Sri Lanka has been significantly lower than in the urban areas, especially around Co...
AUTOMATED LARGE SCALE PARAMETER EXTRACTION OF ROAD-SIDE TREES SAMPLED BY A LASER MOBILE MAPPING SYSTEM
big data laser mobile mapping tree parameters urban voxels
2015/9/21
In urbanized Western Europe trees are considered an important component of the built-up environment. This also means that there is an increasing demand for tree inventories. Laser mobile mapping syste...
MODELLING REFLECTANCE OF URBAN CHESTNUT TREES: A SENSITIVITY ANALYSIS OF MODEL INVERSION FOR SINGLE TREES
radiative transfer model single trees urban environment
2015/9/8
Trees in urban environments have important ecological functions, but often suffer from suboptimal environmental conditions.
Chestnut (Aesculus hippocastanum) is one of the main tree species in German...
Detection of the pine trees damaged by pine wilt disease using high spatial remote sensing data
Pine Wilt Disease Detection High Spatial Image
2015/8/20
Since 1988 pine wilt disease has spread over rapidly in Korea. It is not easy to detect the damaged pine trees by pine wilt disease
from conventional remote sensing skills. Thus, many possibilities w...
SUPERVISED AND FOREST TYPE-SPECIFIC MULTI-SCALE SEGMENTATION FOR A ONE-LEVEL-REPRESENTATION OF SINGLE TREES
Segmentation LiDAR object-based laser scanning crown delineation region growing OLR region-specific segmentation
2015/8/19
In this paper a supervised approach for the object building / segmentation process utilizing a priori knowledge about the specific scale domain of the target features is proposed. One premise was that...