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A POINT CLOUD CLASSIFICATION APPROACH BASED ON VERTICAL STRUCTURES OF GROUND OBJECTS
airborne LiDAR vertical structural characteristics urban point cloud ground objects classification
2018/5/17
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
2018/6/4
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...
PHOTOGRAMMETRIC TECHNIQUES FOR PALEOANTHROPOLOGICAL OBJECTS PRESERVING AND STUDYING
Fossil Accuracy Automation 3D model Palaeoanthropology Non-contact measurements
2018/6/4
Paleo-anthropological research has its specificity closely related with studied objects. Their complicated shape arises from anatomical features of human skull and other skeletal bones. The degree of ...
THE EXAMPLE OF USING THE XIAOMI CAMERAS IN INVENTORY OF MONUMENTAL OBJECTS - FIRST RESULTS
Low-Cost Dense Image Matching Monumental Objects XIAOMI Cameras Quality Assessment SfM MVS
2018/3/5
At present, digital documentation recorded in the form of raster or vector files is the obligatory way of inventorying historical objects. Today, photogrammetry is becoming more and more popular and i...
OBJECTS GROUPING FOR SEGMENTATION OF ROADS NETWORK IN HIGH RESOLUTION IMAGES OF URBAN AREAS
Road extraction Segmentation Objects grouping Object based image analysis Maximal similarity region merging
2016/11/24
Updated road databases are required for many purposes such as urban planning, disaster management, car navigation, route planning, traffic management and emergency handling. In the last decade, the im...
THREE DIMENTIONAL RECONSTRUCTION OF LARGE CULTURAL HERITAGE OBJECTS BASED ON UAV VIDEO AND TLS DATA
3D reconstruction cultural heritage video image sequences terrestrial laser scanning unmanned aerial vehicle
2016/11/11
This paper investigates the synergetic use of unmanned aerial vehicle (UAV) and terrestrial laser scanner (TLS) in 3D reconstruction of cultural heritage objects. Rather than capturing still images, t...
USE OF IMAGE BASED MODELLING FOR DOCUMENTATION OF INTRICATELY SHAPED OBJECTS
Image Based Modelling Timber Roof Truss Spiral Staircase Historical Furniture Folk Costume
2016/11/11
In the documentation of cultural heritage, we can encounter three dimensional shapes and structures which are complicated to measure. Such objects are for example spiral staircases, timber roof trusse...
3D MODELLING AND INTERACTIVE WEB-BASED VISUALIZATION OF CULTURAL HERITAGE OBJECTS
3D modelling photogrammetry 3D visualisation panoramic images integration interactive visualisation
2016/11/11
Nowadays, there are rapid developments in the fields of photogrammetry, laser scanning, computer vision and robotics, together aiming to provide highly accurate 3D data that is useful for various appl...
SCAN PROFILES BASED METHOD FOR SEGMENTATION AND EXTRACTION OF PLANAR OBJECTS IN MOBILE LASER SCANNING POINT CLOUDS
mobile laser scanning point clouds segmentation planarity scan profiles
2016/7/27
The demand for accurate spatial data has been increasing rapidly in recent years. Mobile laser scanning (MLS) systems have become a mainstream technology for measuring 3D spatial data. In a MLS point ...
EXTENSION OF RCC TOPOLOGICAL RELATIONS FOR 3D COMPLEX OBJECTS COMPONENTS EXTRACTED FROM 3D LIDAR POINT CLOUDS
Topological relations planar regions components automatic 3D modelling point cloud
2016/7/27
Topological relations are fundamental for qualitative description, querying and analysis of a 3D scene. Although topological relations for 2D objects have been extensively studied and implemented in G...
The Spatio-temporal object is a kind of complex temporal objects. Here, four basic constructors, i.e., tuple, set, list and temporal, are introduced to construct an algebraic model of complex temporal...
Contributions to a quality description of areal objects in spatial data sets
spatial data quality comparison of spatial entities building extraction
2016/5/20
In this paper we present a quality evaluation of two-dimensional building acquisition. We propose methods for identification and quantifi-cation of differences between independently acquired regions, ...
The determination of the spatial extent of geo-objects is generally approached through the boundaries or more precisely through the position of the boundary points. The analysis of the geometric uncer...
LAND USE CHARACTERIZATION USING LANDCOVER OBJECTS FROM HIGH RESOLUTION SATELLITE IMAGE
Object oriented classification High resolution Satellite Image Land use
2015/12/31
High resolution satellite images such as IKONOS and Quick Bird data provide detail information of land cover at a certain point of time. The small objects in an image represent specific conditions of ...
ORGANIZATION AND REPRESENTATION OF OBJECTS IN MULTI-SOURCE REMOTE SENSING IMAGE CLASSIFICATION
Object-oriented data model Dynamic object representation Multisensor Geometric feature Spectral feature
2015/12/31
Compared with the traditional remote sensing image processing system based on pixel, there are some unique characters in the object-based classification: various operations on objects; variety of obje...