搜索结果: 1-15 共查到“测绘科学技术 Point clouds”相关记录124条 . 查询时间(0.215 秒)
SENSOR- AND SCENE-GUIDED INTEGRATION OF TLS AND PHOTOGRAMMETRIC POINT CLOUDS FOR LANDSLIDE MONITORING
Data integration Landslide monitoring Terrestrial laser scanning Unmanned Aerial Vehicle Photogrammetry
2018/6/5
Terrestrial and airborne 3D imaging sensors are well-suited data acquisition systems for the area-wide monitoring of landslide activity. State-of-the-art surveying techniques, such as terrestrial lase...
FEASIBILITY OF SMARTPHONE BASED PHOTOGRAMMETRIC POINT CLOUDS FOR THE GENERATION OF ACCESSIBILITY MAPS
Point cloud Modelling Photogrammetry Urban accessibility Smartphone Low cost
2018/6/4
Accessible cities with accessible services are an old claim of people with reduced mobility. But this demand is still far away of becoming a reality as lot of work is required to be done yet. First st...
SCAN-TO-BIM OUTPUT VALIDATION: TOWARDS A STANDARDIZED GEOMETRIC QUALITY ASSESSMENT OF BUILDING INFORMATION MODELS BASED ON POINT CLOUDS
geometric quality assessment scan-to-BIM standardization Building Information Modeling point clouds
2018/3/5
The use of Building Information Modeling (BIM) for existing buildings based on point clouds is increasing. Standardized geometric quality assessment of the BIMs is needed to make them more reliable an...
SEGMENTATION OF LARGE UNSTRUCTURED POINT CLOUDS USING OCTREE-BASED REGION GROWING AND CONDITIONAL RANDOM FIELDS
Segmentation Region Growing Conditional Random Fields Point Clouds
2018/3/5
Point cloud segmentation is a crucial step in scene understanding and interpretation. The goal is to decompose the initial data into sets of workable clusters with similar properties. Additionally, it...
AN EFFICIENT METHOD TO CREATE DIGITAL TERRAIN MODELS FROM POINT CLOUDS COLLECTED BY MOBILE LiDAR SYSTEMS
Mobile systems point cloud Digital Terrain Models LiDAR Delaunay triangulation Laplacian operator
2017/7/12
The digital terrain models (DTM) assume an essential role in all types of road maintenance, water supply and sanitation projects. The demand of such information is more significant in developing count...
WEAKLY SUPERVISED SEGMENTATION-AIDED CLASSIFICATION OF URBAN SCENES FROM 3D LIDAR POINT CLOUDS
Classification Segmentation Regularization LiDAR Urban Point Cloud Random Forest
2017/7/12
We consider the problem of the semantic classification of 3D LiDAR point clouds obtained from urban scenes when the training set is limited. We propose a non-parametric segmentation model for urban sc...
A REGISTRATION METHOD OF POINT CLOUDS COLLECTED BY MOBILE LIDAR USING SOLELY STANDARD LAS FILES INFORMATION
Mobile systems point cloud LiDAR registration LAS trajectory adjustment
2017/7/12
In the last few years, LiDAR sensors installed in terrestrial vehicles have been revealed as an efficient method to collect very dense 3D georeferenced information. The possibility of creating very de...
THE SEGMENTATION OF POINT CLOUDS WITH K-MEANS AND ANN (ARTIFICAL NEURAL NETWORK)
Lidar Laser Scanning Photogrammetry Segmentation K-means ANN
2017/7/13
Segmentation of point clouds is recently used in many Geomatics Engineering applications such as the building extraction in urban areas, Digital Terrain Model (DTM) generation and the road or urban fu...
ASSESSING TEMPORAL BEHAVIOR IN LIDAR POINT CLOUDS OF URBAN ENVIRONMENTS
LiDAR Mobile Mapping Alignment Strip Adjustment Change Detection
2017/7/13
Self-driving cars and robots that run autonomously over long periods of time need high-precision and up-to-date models of the changing environment. The main challenge for creating long term maps of dy...
HIERARCHICAL REGULARIZATION OF POLYGONS FOR PHOTOGRAMMETRIC POINT CLOUDS OF OBLIQUE IMAGES
2D Polygon Regularization Normal Reconstruction Global Optimization
2017/7/12
Despite the success of multi-view stereo (MVS) reconstruction from massive oblique images in city scale, only point clouds and triangulated meshes are available from existing MVS pipelines, which are ...
BEYOND POINT CLOUDS AND VIRTUAL REALITY. INNOVATIVE METHODS AND TECHNOLOGIES FOR THE PROTECTION AND PROMOTION OF CULTURAL HERITAGE
Laser scanner reverse modelling advanced 3D BIM
2017/6/20
The morphometric and photogrammetric knowledge, combined with the historical research, are the indispensable prerequisites for the protection and enhancement of historical, architectural and cultural ...
ACCURACY ASSESSMENT OF POINT CLOUDS GEO-REFERENCING IN SURVEYING AND DOCUMENTATION OF HISTORICAL COMPLEXES
Geo-referencing Point Cloud Registration Architectural Heritage Accuracy
2017/6/20
Terrestrial Laser Scanning (TLS) technique is widely used for documentation and preservation of historical sites by for example creating three-dimensional (3-D) digital models or vectorial sketches. I...
NEW PERSPECTIVES OF POINT CLOUDS COLOR MANAGEMENT – THE DEVELOPMENT OF TOOL IN MATLAB FOR APPLICATIONS IN CULTURAL HERITAGE
Color Models Cultural Heritage Terrestrial Laser Scanner Photogrammetry
2017/4/10
The paper describes a method for Point Clouds Color management and Integration obtained from Terrestrial Laser Scanner (TLS) and Image Based (IB) survey techniques. Especially in the Cultural Heritage...
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...
INTEGRATION OF POINT CLOUDS DATASET FROM DIFFERENT SENSORS
Laser scanners, Airborne Laser Scanner (ALS) Terrestrial Laser Scanner (TLS) accuracy assessment three dimensional (3D) model
2017/4/5
Laser Scanner technology become an option in the process of collecting data nowadays. It is composed of Airborne Laser Scanner (ALS) and Terrestrial Laser Scanner (TLS). ALS like Phoenix AL3-32 can pr...