搜索结果: 1-15 共查到“测绘科学技术 Three-dimensional”相关记录46条 . 查询时间(0.232 秒)
QUALITY INSPECTION AND ANALYSIS OF THREE-DIMENSIONAL GEOGRAPHIC INFORMATION MODEL BASED ON OBLIQUE PHOTOGRAMMETRY
Oblique Photogrammetry Three-Dimensional Geographic Information Model Quality Inspection, Basic Principles Technical Features Common Problems
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2018/5/11
In order to promote the construction of digital geo-spatial framework in China and accelerate the construction of informatization mapping system, three-dimensional geographic information model emerged...
ROBUST CYLINDER FITTING IN THREE-DIMENSIONAL POINT CLOUD DATA
Feature Extraction Geometric Shape Laser Scanning Object Recognition Pole Modelling Robust PCA Robust Regression Surface Fitting
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2017/7/12
This paper investigates the problems of cylinder fitting in laser scanning three-dimensional Point Cloud Data (PCD). Most existing methods require full cylinder data, do not study the presence of outl...
COMPARISON OF COMMERCIAL STRUCTURE-FROM-MOTION PHOTOGRAMMETY SOFTWARE USED FOR UNDERWATER THREE-DIMENSIONAL MODELING OF CORAL REEF ENVIRONMENTS
Coral Reefs Coral Ecology Habitat Photogrammetry Structure-from-Motion Structural Complexity 3D topographic reconstruction 3D underwater modeling Agisoft Photoscan Pix4D
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2017/4/5
Structural complexity in ecosystems creates an assortment of microhabitat types and has been shown to support greater diversity and abundance of associated organisms. The 3D structure of an environmen...
ACCURACY ASSESSMENT OF UNDERWATER PHOTOGRAMMETRIC THREE DIMENSIONAL MODELLING FOR CORAL REEFS
Photogrammetry Underwater 3D Modelling Accuracy Assessment Calibration Point Clouds Coral Reefs Coral Growth Moorea
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2016/11/11
Recent advances in automation of photogrammetric 3D modelling software packages have stimulated interest in reconstructing highly accurate 3D object geometry in unconventional environments such as und...
THREE-DIMENSIONAL RECORDING OF BASTION MIDDLEBURG MONUMENT USING TERRESTRIAL LASER SCANNER
Three-dimensional Historical Monument Terrestrial Laser Scanning Time-off-flight Point Cloud
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2016/11/11
This paper describes the use of terrestrial laser scanning for the full three-dimensional (3D) recording of historical monument, known as the Bastion Middleburg. The monument is located in Melaka, Mal...
RASTERIZATION AND VOXELIZATION OF TWO- AND THREE-DIMENSIONAL SPACE PARTITIONINGS
Vector-to-raster conversion voxelization 3D grid indoor model
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2016/11/8
The paper presents a very straightforward and effective algorithm to convert a space partitioning, made up of polyhedral objects, into a 3D block of voxels, which is fully occupied, i.e. in which ever...
AIRBORNE LIGHT DETECTION AND RANGING (LIDAR) DERIVED DEFORMATION FROM THE MW 6.0 24 AUGUST, 2014 SOUTH NAPA EARTHQUAKE ESTIMATED BY TWO AND THREE DIMENSIONAL POINT CLOUD CHANGE DETECTION TECHNIQUES
LiDAR Change Detection ICP
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2016/7/8
Remote sensing via LiDAR (Light Detection And Ranging) has proven extremely useful in both Earth science and hazard related studies. Surveys taken before and after an earthquake for example, can provi...
MODELLING OF REALISTIC THREE DIMENSIONAL DAM COLLAPSE AND LANDSLIDE EVENTS
Smoothed Particle Hydrodynamics Discrete Element Method Dam Collapse Landslides Extreme Flow Events
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2016/3/17
Computational modelling of extreme particle and fluid flow events can provide increased understanding of their post-initiation course. For the prediction of fluid events such as dam breaks we use the ...
Broken-Ray Videometric Method and System for Measuring the Three-Dimensional Position and Pose of the Non-Intervisible Object
Close Range Photogrammetry Deformation Digital photogrammetry
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2015/12/14
The traditional videometrics technique is usually adopted to measure the relative position and pose between the intervisible objects,
and is invalid for measuring the three-dimensional position, pose...
Interoperable Three-Dimensional GIS City Modeling with Geo-informatics Techniques and 3D Modeling Software
GIS Three-dimensional Visualization Integration, Mapping
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2015/12/3
A working integration of three-dimensional models with geo-referenced database holds great promise for large scale spatial study. In the past, the work was separated and difficult to combine between g...
Three Dimensional Property Right Problems and Suggestions for Turkey
Geographical Information Science Object-oriented Data Model Spatial Modeling Cadastre Computer Vision
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2015/12/3
Cadastre, was used for proposing land tax at the first time, is defined as being geographical information systems which modelling between human and land relationships and cadastre turns into multi-lay...
A Three-dimensional Error Model of DEM Based on the Reconstruct Contours
DEM contour line precision analysis three-dimensional model error mean square error
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2015/12/3
In this paper, a three-dimensional error model of grid digital elevation model (DEM) is proposed based on the reconstructed contours. Though analyzing the construction of three-dimensional error model...
Three-dimensional Building Reconstruction Using Point Primitives: a Geometric Graph Approach
Building Geometric Graph Reconstruction Triangulation
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2015/12/2
Building reconstruction is one of the most difficult and important 3D modelling problems for urban environment. In this paper, we develop an approach using minimum number of basic geometric elements t...
Fast Reconstruction of Three Dimensional City Model Based on Airborne LIDAR
Airborne LIDAR Three Dimensional City Model (3DCM)
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2015/11/20
Three Dimensional City Model (3DCM) research becomes a hot area in GIS field in recent years. The 3DCM research also has great significance in traffic, land, mine, surveying and mapping, and other fie...
Forestry;Surveying;laser scanning;Precision;Three-dimensional;Modelling
ILRIS-3D laser scanner Landslide Point cloud Data processing Monitoring
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2015/11/20
Landslide hazards are one of the major natural hazards. It is difficult not only to get the integrated and accurate landslide datum but also to monitor and predict the landslide. This paper introduces...