搜索结果: 1-15 共查到“Voxel”相关记录19条 . 查询时间(0.07 秒)
Voxel-Based Automatic Tree Detection and Parameter Retrieval from Terrestrial Laser Scans for Plot-Wise Forest Inventory
remote sensing forest inventory terrestrial laser scanning point cloud processing automatic tree extraction stem curve tree height TLS benchmarking
2023/12/6
This paper presents a fully automatic method addressing tree mapping and parameter extraction (tree position, stem diameter at breast height, stem curve, and tree height) from terrestrial laser scans ...
A VOXEL-BASED FILTERING ALGORITHM FOR MOBILE LIDAR DATA
Mobile LiDAR filtering voxelization upward growing curvature
2018/5/15
This paper presents a stepwise voxel-based filtering algorithm for mobile LiDAR data. In the first step, to improve computational efficiency, mobile LiDAR points, in xy-plane, are first partitioned in...
VOXEL BASED SEGMENTATION OF LARGE AIRBORNE TOPOBATHYMETRIC LIDAR DATA
Point cloud large-scale dataset Segmentation Classification Ground extraction Voxel structure
2017/7/12
Point cloud segmentation and classification is currently a research highlight. Methods in this field create labelled data, where each point has additional class information. Current approaches are to ...
VOXEL BASED REPRESENTATION OF FULL-WAVEFORM AIRBORNE LASER SCANNER DATA FOR FORESTRY APPLICATIONS
Full-waveform airborne laser scanning Voxel space Ray tracing Forest Filtering
2016/11/30
The advantages of using airborne full-waveform laser scanner data in forest applications, e.g. for the description of the vertical vegetation structure or accurate biomass estimation, have been emphas...
AUTOMATED VOXEL MODEL FROM POINT CLOUDS FOR STRUCTURAL ANALYSIS OF CULTURAL HERITAGE
Cultural Heritage Buildings Point cloud Voxel Terrestrial laser scanning Structural analysis FEM Mesh generation
2016/11/11
In the context of cultural heritage, an accurate and comprehensive digital survey of a historical building is today essential in order to measure its geometry in detail for documentation or restoratio...
Voxel Approach to Landscape Modelling
Voxel Model Airborne Laser Scanning Intensity Resolution
2015/12/16
In this paper, we present a method for 3D volumetric reconstruction of landscape from airborne laser scanner data. The method applies a voxel model, where volume is divided to sub-volume particles, vo...
3D Determination of Very Dense Particle Velocity Fields by Tomographic Reconstruction from Four Camera Views and Voxel Space Tracking
Tomographic Reconstruction Flow Measurement Tracking
2015/12/14
The paper presents some improvements to a novel approach for the determination of 3-D flow velocity fields, which is based on 3-D
particle tracking in a tomographic reconstruction of an observation v...
Tie Voxel Method and Its Quality for 3D Airborne LIDAR Block Adjustment
Methods LIDAR Matching Error Transformation Three-dimensional Block
2015/12/8
For achieving high-quality LIDARgrammetry and performing surface reconstruction by 3D point clouds acquired at different locations or in different coordinate systems, a novel method was proposed and i...
COMPARISON OF PHOTOCONSISTENCY MEASURES USED IN VOXEL COLORING
photoconsistency voxel coloring three-dimensional object modeling
2015/8/14
A framework for the comparison of photoconsistency measures used in voxel coloring algorithm is described. With this framework,
the results obtained in generalized voxel coloring algorithm using cert...
VOXEL-BASED QUALITY EVALUATION OF PHOTOGRAMMETRIC BUILDING ACQUISITIONS
Acquisition Building Quality Accuracy Raster
2015/8/7
Automatic quality evaluation of photogrammetric building acquisitions is important to realize deficiencies of acquisition approaches, to compare different acquisitions approaches and to check the keep...
A voxel-based technique to estimate the volume of trees from terrestrial laser scanner data
Terrestrial Laser Scanning Point Cloud Tree Volume Estimation Voxel
2014/7/30
The precise determination of the volume of standing trees is very important for ecological and economical considerations in forestry. If terrestrial laser scanner data are available, a simple approach...
VERTICAL VEGETATION STRUCTURE ANALYSIS AND HYDRAULIC ROUGHNESS DETERMINATION USING DENSE ALS POINT CLOUD DATA - A VOXEL BASED APPROACH
surface roughness hydraulic simulation Manning's n land cover full-waveform LiDAR
2014/6/5
In this contribution the complexity of the vertical vegetation structure, based on dense airborne laser scanning (ALS) point cloud data (25 echoes/m2 ), is analyzed to calculate vegetation roughness f...
VOXEL-BASED ESTIMATION OF PLANT AREA DENSITY FROM AIRBORNE LASER SCANNER DATA
Canopy structure Three-dimensional (3-D) Flight line Lidar Plant area index Crown volume
2014/6/5
Three-dimensional distribution of plant area density (PAD) was retrieved using airborne laser scanning (ALS) data. The calculation of PAD requires the number of laser-pulses intercepted by plant mater...
TOPOLOGY EXTRACTION USING DEPTH FIRST SEARCH ON VOXEL REPRESENTATIONS OF TREE POINT CLOUDS
Forestry Terrestrial Laser Scanning Point Cloud Forest Inventory Topology Extraction
2014/6/5
The three-dimensional reconstruction of the vegetation structure is a requirement for the analysis of interaction between biosphere and atmosphere. Information about the 3D structure of plants enables...
VOXEL-BASED APPROACH FOR ESTIMATING URBAN TREE VOLUME FROM TERRESTRIAL LASER SCANNING DATA
Terrestrial Laser Scanning (TLS) Forestry High Resolution Data Acquisition Automation Data Modelling
2014/4/30
The importance of single trees and the determination of related parameters has been recognized in recent years, e.g. for forest inventories or management. For urban areas an increasing interest in the...