搜索结果: 31-45 共查到“测绘科学技术 urban areas”相关记录83条 . 查询时间(0.021 秒)
A ROBUST ALGORITHM FOR ESTIMATING DIGITAL TERRAIN MODELS FROM DIGITAL SURFACE MODELS IN DENSE URBAN AREAS
DSM DTM Elastic Grid Outliers Robust Statistics
2015/8/31
This paper describes an algorithm in order to derive DTMs (Digital Terrain Models) from correlation DSMs (Digital Surface Models) and above-ground (buildings and vegetation) masks in dense urban areas...
A ROBUST ALGORITHM FOR ESTIMATING DIGITAL TERRAIN MODELS FROM DIGITAL SURFACE MODELS IN DENSE URBAN AREAS
DSM DTM Elastic Grid Outliers Robust Statistics
2015/8/28
This paper describes an algorithm in order to derive DTMs (Digital Terrain Models) from correlation DSMs (Digital Surface Models) and above-ground (buildings and vegetation) masks in dense urban areas...
INTERPRETATION OF HIGH RESOLUTION SAR DATA USING EXISTING GIS DATA IN URBAN AREAS
SAR Registration Simulation Georeferencing GIS Change Detection Urban Building
2015/8/7
Within the paper the automatic matching of existing GIS data to airborne SAR scenes for georeferencing is discussed. For this purpose simulated SAR images are generated based on the available GIS obje...
OBJECT-BASED CLASSIFICATION OF INTEGRATED MULTISPECTRAL AND LIDAR DATA FOR CHANGE DETECTION AND QUALITY CONTROL IN URBAN AREAS
Change Detection classification quality control multispectral LIDAR
2015/8/3
Digital spatial data are underlying strong temporal changes. The typical approach of updating these changes is to check the data manually by superimposing them on up-to-date orthoimages from aerial or...
SEGMENTATION OF VERY HIGH SPATIAL RESOLUTION SATELLITE IMAGES IN URBAN AREAS FOR SEGMENTS-BASED CLASSIFICATION
Urban remote sensing Satellite Image Very High Spatial Resolution Segmentation Image Object Texture eCognition Software Scale Parameter
2015/8/3
High spatial Resolution (VHR) satellite images offer a great potential for the extraction of information for urban areas. In order to derive useful thematic maps from VHR satellite images, other appro...
VEHICLE QUEUE DETECTION IN SATELLITE IMAGES OF URBAN AREAS
Urban Feature extraction Edge detection Optical Satellite Imagery Quickbird
2015/8/3
There is an increasing demand in traffic monitoring of densely populated urban areas. In our approach we use a priori information of roads location and focus on vehicle queues detection. In this image...
QUANTITATIVE ANALYSIS OF SHADOW EFFECTS IN HIGH-RESOLUTION IMAGES OF URBAN AREAS
Shadow Object Extraction High resolution Classification Land Cover LIDAR
2015/8/3
Shadow effects have drawn much attention by researchers with increasing use of high-resolution remote sensing images of urban areas. For correction or compensation to pixels that falling in shadow are...
GENERATING TRUE ORTHOIMAGES FROM URBAN AREAS–A NEW APPROACH
Matching Rectification Orthoimage Urban Three-Line Configuration
2015/8/3
Orthoimages are very important geospatial datasets, forming the database for a great variety of applications. So far, orthoimages are generated from aerial photographs by differential rectification to...
MAPPING URBAN AREAS BY FUSING MULTIPLE SOURCES OF COARSE RESOLUTION REMOTE SENSED DATA
Urban Geography Land Cover Classification MODIS Multitemporal Decision Trees
2015/8/3
The main objective of this research is to improve understanding of the methodological and validation requirements for mapping urban land cover over large areas from coarse resolution remotely sensed d...
WAVEFORM PROCESSING OF LASER PULSES FOR RECONSTRUCTION OF SURFACES IN URBAN AREAS
Urban Analysis Laser scanning LIDAR Measurement Feature
2015/8/3
In this paper we describe investigations for digital recording of received laser pulses and a detailed analysis of the pulse waveform.In contrast to previous works using a single photon detection tech...
TERRASAR-X: HOW CAN HIGH RESOLUTION SAR DATA SUPPORT THE OBSERVATION OF URBAN AREAS?
SAR High Resolution Interferometry Change Detection
2015/8/3
TerraSAR-X is a new German radar satellite that shall be launched in mid 2006. The expected lifetime is 5 years. It carries a high frequency X-band Synthetic Aperture Radar (SAR) sensor that can be op...
Occlusion-free 3d Realistic Modelling of Buildings in Urban Areas
Photogrammetry Textures Buildings Modelling
2015/7/7
Currently the creation of textures for construction of Visually Realistic Models (VRMs) of buildings is a time consuming manual
process involving the use of a number of separate software applications...
AIRBORNE MONITORING OF VEHICLE ACTIVITY IN URBAN AREAS
Urban, Monitoring Aerial Infrared SAR
2015/6/1
In this paper several possibilities of vehicle extraction from different airborne sensor systems are described. Three major frequency
domains of remote sensing are considered, namely (i) visual, (ii...
SAR DATA ACQUISITION FOR EVENT-DRIVEN MAPPING OF URBAN AREAS USING GIS
SAR, Building Detection Urban Simulation Fusion
2015/6/1
Airborne SAR systems allow a flexible ground mapping with high geometric resolution, independent from daytime and weather
conditions. This offers the opportunity of using this technology for the ana...
DETECTION OF COLLAPSED BUIDINGS DUE TO EATHQUAKE IN URBAN AREAS
Change Detection Disaster Mapping Matching
2015/6/1
As the initial investigation on disaster occurrence, it is very important for reducing economical losses to obtain timely observation of
damages especially in metropolis. In such situation, informat...