搜索结果: 1-15 共查到“测绘科学技术 Cloud”相关记录145条 . 查询时间(0.218 秒)
INSTANTANEOUS COASTLINE EXTRACTION FROM LIDAR POINT CLOUD AND HIGH RESOLUTION REMOTE SENSING IMAGERY
coastline image segmentation LiDAR region growing
2018/4/30
A new method was proposed for instantaneous waterline extraction in this paper, which combines point cloud geometry features and image spectral characteristics of the coastal zone. The proposed method...
A POINT CLOUD CLASSIFICATION APPROACH BASED ON VERTICAL STRUCTURES OF GROUND OBJECTS
airborne LiDAR vertical structural characteristics urban point cloud ground objects classification
2018/4/30
This paper proposes a novel method for point cloud classification using vertical structural characteristics of ground objects. Since urbanization develops rapidly nowadays, urban ground objects also c...
CLASSIFICATION OF DUAL-WAVELENGTH AIRBORNE LASER SCANNING POINT CLOUD BASED ON THE RADIOMETRIC PROPERTIES OF THE OBJECTS
airborne laser scanning LiDAR multispectral laser scanning classification OPALS GNDVI
2018/3/30
Airborne laser scanning (ALS) is a well-known and willingly used technology. One of the advantages of this technology is primarily its fast and accurate data registration. In recent years ALS is conti...
MULTIPLE TLS POINT CLOUD REGISTRATION BASED ON POINT PROJECTION IMAGES
Terrestrial Laser Scanning Point Clouds Registration Point Projection Image Scan Graph Iterative Closest Point
2018/3/30
In this paper, an efficient and robust registration method of multiple point clouds is proposed. In our research, we assume that point clouds are acquired by Terrestrial Laser Scanning (TLS) systems, ...
3D RECONSTRUCTION WITH A COLLABORATIVE APPROACH BASED ON SMARTPHONES AND A CLOUD-BASED SERVER
smartphone 3D reconstruction low-cost collaborative SfM photogrammetry dense image matching
2018/3/6
The paper presents a collaborative image-based 3D reconstruction pipeline to perform image acquisition with a smartphone and geometric 3D reconstruction on a server during concurrent or disjoint acqui...
POINTO - A LOW COST SOLUTION TO POINT CLOUD PROCESSING
Automatic Density Pointo CAD Low Cost Octree Point cloud Processing
2018/3/5
With advance in technology access to data especially 3D point cloud data becomes more and more an everyday task. 3D point clouds are usually captured with very expensive tools such as 3D laser scanner...
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
2017/5/30
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...
USING WEBGIS AND CLOUD TOOLS TO PROMOTE CULTURAL HERITAGE DISSEMINATION: THE HISTORIC UP PROJECT
GIS WebGIS WWI Education Tour Builder Cloud
2017/5/20
On the occasion of the First World War centennial, GeoSNav Lab (Geodesy and Satellite Navigation Laboratory), Department of Engineering and Architecture, University of Trieste, Italy, in coooperation ...
IMPROVED PARAMETERIZATION OF WATER CLOUD MODEL FOR HYBRID-POLARIZED BACKSCATTER SIMULATION USING INTERACTION FACTOR
Water cloud model Vegetation descriptors Hybrid-polarized backscatter Interaction factor Leaf area index
2017/5/10
The prime aim of this study was to assess the potential of semi-empirical water cloud model (WCM) in simulating hybrid-polarized SAR backscatter signatures (RH and RV) retrieved from RISAT-1 data and ...
POINT CLOUD ANALYSIS FOR CONSERVATION AND ENHANCEMENT OF MODERNIST ARCHITECTURE
3D survey Conservation Modernist Architecture
2017/2/23
Documentation of cultural assets through improved acquisition processes for advanced 3D modelling is one of the main challenges to be faced in order to address, through digital representation, advance...
IMAGE-BASED AIRBORNE LiDAR POINT CLOUD ENCODING FOR 3D BUILDING MODEL RETRIEVAL
Point Cloud Encoding Spatial Histogram 3D Model Retrieval Cyber City Modeling
2016/12/1
With the development of Web 2.0 and cyber city modeling, an increasing number of 3D models have been available on web-based model-sharing platforms with many applications such as navigation, urban pla...
AN OPTIONAL THRESHOLD WITH SVM CLOUD DETECTION ALGORITHM AND DSP IMPLEMENTATION
cloud detection DSP SVM classifier threshold emulator
2016/11/30
This paper presents a method which combines the traditional threshold method and SVM method, to detect the cloud of Landsat-8 images. The proposed method is implemented using DSP for real-time cloud d...
CLOUD DETECTION OF OPTICAL SATELLITE IMAGES USING SUPPORT VECTOR MACHINE
Cloud Detection Classification Support Vector Machine
2016/11/23
Cloud covers are generally present in optical remote-sensing images, which limit the usage of acquired images and increase the difficulty of data analysis, such as image compositing, correction of atm...
EVALUATING THE POTENTIAL OF RTK-UAV FOR AUTOMATIC POINT CLOUD GENERATION IN 3D RAPID MAPPING
Unmanned aerial system Real time kinematic Point clouds generation Bundle adjustment Digital surface model Lever arm calibration Sensor synchronization
2016/11/15
During disaster and emergency situations, 3D geospatial data can provide essential information for decision support systems. The utilization of geospatial data using digital surface models as a basic ...
LOST IN THE CLOUD - NEW CHALLENGES FOR TEACHING GIS
Cloud based GIS open source open data teaching learning
2016/11/15
As cloud based services move towards becoming the dominant paradigm in many areas of information technology, GIS has also moved into ‘the Cloud’, creating a new opportunities for professionals and stu...