搜索结果: 1-15 共查到“地理信息系统 Extraction”相关记录23条 . 查询时间(0.08 秒)
AUTOMATIC RIVER NETWORK EXTRACTION FROM LIDAR DATA
Lidar DTM water resources fundamental datasets IGN-ES INSPIRE
2016/11/30
National Geographic Institute of Spain (IGN-ES) has launched a new production system for automatic river network extraction for the Geospatial Reference Information (GRI) within hydrography theme. The...
IMPROVEMENT EVALUATION ON CERAMIC ROOF EXTRACTION USING WORLDVIEW-2 IMAGERY AND GEOGRAPHIC DATA MINING APPROACH
Geographical Data Mining GEOBIA WorldView-2 Ceramic roof C4.5 Decision Tree Classification accuracy
2016/11/24
Advances in geotechnologies and in remote sensing have improved analysis of urban environments. The new sensors are increasingly suited to urban studies, due to the enhancement in spatial, spectral an...
ROADS EXTRACTION AND THEIR CHANGES DETECTION IN AIRBORNE IMAGES WITH THE HELP OF GIS DATA
Linear features GIS error correction gradient edge tracking
2016/1/3
This paper presents a novel routine to detect the changes of main roads with airborne images of medium-scale of 1:10,000. It mainly focuses on the changes detection of primary streets not the extracti...
BUILDING EXTRACTION FROM ALS DATA BASED ON REGULAR AND IRREGULAR TESSELLATIONS
LIDAR Extraction Detection Building TIN GRID
2015/12/23
For the past dozen years, data which enable the use of Digital Terrain Model as well as Digital Surface Model have been widely used. One of the modern techniques of gaining information about terrain i...
Geo-referenced digital images tak en by CCD cameras and integrated with GPS/INS data provide an efficient way for monitoring special objects with high resolution and visual capability in a h ighway/ro...
Automatic extraction of building features from terrestrial laserscanning
3D modeling terrestrial laser scanning segmentation feature recognition
2015/8/25
Realistic 3D city models are required for many purposes such as urban planning and safety analysis. The traditional modeling methods are mainly based on manual or semi-automatic reconstruction from cl...
POTENTIAL OF BUILDING EXTRACTION FROM MULTI-ASPECT HIGH-RESOLUTION AMPLITUDE SAR DATA
SAR Building Detection Reconstruction Urban GIS Fusion
2015/8/7
State-of-the-art airborne SAR sensors provide spatial resolution on the order of a decimetre. In such data, many features of urban objects can be identified, which were beyond the scope of radar remot...
Efficient Line Extraction for Digital Archives of Cultural Heritage using Optical Flow and Trifocal Tensor
Cultural Heritage Extraction Sequences
2015/7/15
In order to perform object modelling by image processing procedures, line or feature extraction and stereo matching used to perform.
However, there are some issues for efficient 3D modelling of objec...
Development of Digital Surface Model and Feature Extraction By Integrating Laser Scanner and Ccd Sensor With Imu
Laser Scanning CCD IMU
2015/7/15
Three dimension data are in great demand for the various applications such as 3D GIS, navigation, digital archive, simulation,
computer games, and so on. In order to represent space in details, it is...
An Algorithm for Centreline Extraction Using Natural Neighbour Interpolation
acquisition GIS integration
2015/7/9
Data caption and conversion are two of the most costly operations of any GIS, in terms of computer time and manual work needed for
spatial data acquisition. They can represent up to 80 percent of the...
Modelling The Extraction of Field Boundaries and Wind Erosion Obstacles from Aerial Imagery
Modelling Integration GIS
2015/7/9
In this paper work on image analysis methods extracting field boundaries and wind erosion obstacles from aerial imagery is
presented. Describing the objects of interest and additional GIS-data togeth...
Image Processing and Gis Tools for Feature and Change Extraction
Mapping Acquisition Extraction
2015/7/7
Currently the Centre for Topographic Information, Geomatics Canada, NRCan is involved in issue-based programs, such as the
Geomatics for Northern Development and the Reducing Canada’s Vulnerability t...
Extraction of Non-point Pollution Using Satellite Imagery Data
Land Cover Map Non-Point Source of Pollution
2015/7/7
Land cover map is a typical GIS database which shows the Earth's physical surface differentiated by standardized homogeneous
land cover types. Satellite images acquired by Landsat TM were primarily u...
AUTOMATIC LINEAR FEATURE EXTRACTION OF IRANIAN ROADS FROM HIGH RESOLUTION MULTI-SPECTRAL SATELLITE IMAGERY
Extraction Fuzzy Logic IKONOS
2015/6/2
Attaining geospatial information is a challenge for many scientific practitioners. Such information is a necessary tool for spatial
decision making. Remote Sensing (RS) is the leading art/science pr...
DIGITAL ANALYSIS AND BASIC SHAPE RELIEF EXTRACTION FROM DTM
Geomorphology Analysis Global-Environmental-Databases Algorithms Automation DEM/DTM GIS Landscape
2015/6/1
Geomorphometry, by its analytical approach, contributes towards understanding landscape shapes and processes that generate them. The automation of relief’s feature extraction is in a transition period...