搜索结果: 1-15 共查到“大地测量学 Extraction”相关记录22条 . 查询时间(0.125 秒)
POLE-LIKE OBJECT EXTRACTION FROM MOBILE LIDAR DATA
LiDAR Point Clouds Local Roughness Graph Cuts based segmentation Pole-like object detection DBSCAN based point clustering
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2016/7/5
Object detection and recognition from LiDAR (Light Detection And Ranging) data has been a research topic in the fields of photogrammetry and computer vision. Unlike point clouds collected in well-cont...
EXTRACTION OF OPTIMAL SKELETON OF POLYGON BASED ON HIERARCHICAL ANALYSIS
Optimal Skeleton Algorithm Hierarchical Structure
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2016/3/17
Skeleton is an important 1-D descriptor of polygon and a useful tool for advanced geometric algorithms. However the skeleton that most existing algorithms investigated is the longest one, which is not...
A STUDY OF FEATURE POINTS EXTRACTION BASED ON POINT CLOUD DATA SETS AND MODEL SIMPLIFICATION IN GOAF
Feature Points Extraction 3D laser scanner Point Cloud Data Sets Model Simplification Goaf
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2016/3/17
The shape measurement of goaf is an important job in mine project. With the rapid development of the measuring equipment, 3D laser scanner, which makes the efficiency of traditional work being improve...
STRAIGHT ROADS EXTRACTION BY FUSION OF SPOKE WHEEL AND REGION GROWING
Semi-automatic road extraction spoke wheel region growing
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2016/3/17
Semi-automatic methods are regarded as more practical than automatic methods to obtain and/or update the vector road data. But road tracking methods lose their efficiencies when they are applied to tr...
HYPERSPECTRAL IMAGE FEATURE EXTRACTION BASED ON GENERALIZED DISCRIMINANT ANALYSIS
Hyperspectral Image Feature Extraction Generalized Discriminant Analysis Kernel Function
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2015/12/30
The hyperspectral image enriches spectrum information, so compared with panchromatic image and multispectral image; it can classify the ground target better. The feature extraction of hyperspectral im...
ATMOSPHERIC SMOG MODELLING,USING EOS SATELLITE ASTER IMAGE SENSOR,WITH FEATURE EXTRACTION FOR PATTERN RECOGNITION TECHNIQUES AND ITS ANALYSIS OF VARIANCE WITH IN-SITU GROUND SENSOR DATA
Smog Absorption Bands Satellite-Imagery Spectral Signature Sensors ASTER
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2015/12/28
Atmospheric pollution was previously considered as a 'Brown Cloud’ phenomenon restricted to industrialized urban regions. Studies in field stations and satellite observations made since the last decad...
A RAPID METHOD FOR WATER TARGET EXTRACTION IN SAR IMAGE
Synthetic Aperture Radar Imagery Water Target Automatic Recognition Grey Morphology Nonlinear Filter
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2015/12/23
For the inherent speckles in SAR imagery, the processing of object extraction becomes more difficult. Using the traditional target extraction arithmetic for optical imagery, we can not get ideal resul...
A Rapid Method of Illegal Mining Information Extraction
Mine Law Enforcement Information Extraction RS GIS
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2015/12/2
The method of IHS transformation and remote sensing image data is made good use of extracting mining change regions in this paper. After overlaying change region with land use data or mining property ...
EXTRACTION OF OPTIMAL SPECTRAL BANDS USING HIERARCHICAL BAND MERGING OUT OF HYPERSPECTRAL DATA
Classification Feature selection Sensor design Hyperspectral Spectral bands Multispectral
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2015/9/21
Spectral optimization consists in identifying the most relevant band subset for a specific application. It is a way to reduce hyperspectral data huge dimensionality and can be applied to design specif...
EXTRACTION OF HORIZONTAL VANISHING LINE USING SHAPES AND STATISTICAL ERROR PROPAGATION
geometrical scene analysis error propagation video processing Hough transformation
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2015/8/31
In this paper we address the problem of estimating the horizontal vanishing line, making use of motion statistics derived from a video sequence. The computation requires the satisfying of a number of ...
EXTRACTION OF HORIZONTAL VANISHING LINE USING SHAPES AND STATISTICAL ERROR PROPAGATION
geometrical scene analysis error propagation video processing Hough transformation
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2015/8/28
In this paper we address the problem of estimating the horizontal vanishing line, making use of motion statistics derived from a video sequence. The computation requires the satisfying of a number of ...
A Generalization of Contour Line Based on the Extraction and Analysis of Drainage System
Map generalization Delaunay triangulation Drainage system
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2015/7/10
Unlike the simplification of independent line features, the generalization of terrain contour is to handle the “line group”, which
describes the geomorphologic characteristics, such as the terrain va...
Performance of Automatic Tie Point Extraction Using Hrsc Imagery of The Mars Express Mission
Extraterrestrial Planetary Camera
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2015/7/8
In January 2004 the first European interplanetary spacecraft, Mars Express, was inserted successfully into a Martian orbit. The
multiline scanner HRSC (High Resolution Stereo Camera) on board of Mars...
Extraction of Road Geometry Parameters from Laser Scanning and Existing Databases
Road Parameter Extraction Digital Road Databases Laser Scanning Data Fusion
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2015/5/26
Today's car navigation systems have reached a high level of maturity, using huge map databases with a high coverage and
up-to-dateness. However, as additional applications gain importance, such as ad...
Building Extraction using LiDAR DEMs and IKONOS Images
LIDAR IKONOS Automation DEM/DTM Filtering
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2015/5/26
An automated method for boundary representation of building objects has been considered as a core processor for 3D city modelling.
Since the reconstruction of generic building shape fundamentally de...