搜索结果: 46-60 共查到“图形图象复制技术”相关记录157条 . 查询时间(0.87 秒)
Geometrical Transformation of Nautical Charts in Greenland
Nautical Charts Transformation Kriging
2015/12/16
We present an algorithm for transformation and reconstruction of nautical charts, based on identification of common points in new orthophotos and old charts. The algorithm shows to be implementa...
Study on the Modeling Componentof Geographic Concept Scene Based on 3D Icons
Modelling Graphics Modelling Metadata Three-dimensional Representation
2015/12/16
There are many problems in conceptual modelling process, such as difficulties in modelling conception sharing, expressing and simulating the processes via a visual method, and so on. To solve those pr...
Quality Assessment for Multi-Sensor Multi-Date Image Fusion
Image Processing Sharpening Image Understanding Fusion Environmental Monitoring Colour
2015/12/16
Generally, image fusion methods are classified into three levels: pixel level (iconic), feature level (symbolic) and knowledge or decision level. In this paper we focus on iconic techniques for image ...
Semi-Automatic Extraction of Features from Digital Imagery
Image Segmentation Semi-Automatic Feature Extraction Fast-Marching Level-Set
2015/12/16
Aerial photographs have been evaluated manually by the operators for a long time for the extraction of the vector data. The development of computer technology and digital image processing technologies...
An Automatic Contour Based Detection of Terrestrial Objects from Aerial Imagery Data
Automation Feature Extraction Image Segmentation Contour Matching
2015/12/16
The original approach to image matching is proposed. The method itself can be classified as contour matching, based on boundary pattern analysis technique. Contours extraction technique is reinforced ...
Automated Pavement Imaging Program (APIP) for Pavement Cracks Classification and Quantification - a Photogrammetric Approach
APIP Image processing Photogrammetry Pavement distress Cracks Potholes Delaminatons
2015/12/16
The evaluation of pavement conditions is an important part of pavement management. Traditionally, pavement condition data are gathered by human inspectors who walk or drive along the road to assess th...
Segmentation Optimization for Aerial Images with Spatial Constraints
Image Segmentation Optimization Methods Parameter Estimation
2015/12/16
Unsupervised segmentation methods are important to extract boundary features from large forest vegetation databases. Finding optimized segmentation algorithms for images with natural vegetation is cru...
Automatic Object Extraction for Change Detection and GIS Update
Object Extraction Image Understanding Evaluation Disaster Management
2015/12/16
In this paper we will revise the recent developments in the field of automatic object extraction for change detection and GIS update under different aspects: (1) level of automation; (2) available sen...
The Design and Implementation of SAR Reference Image Information Insurance System Based on ARCSDE
SAR Reference Image Spatial Database ArcSDE Information Insurance System Spatial Analysis
2015/12/11
This paper aims at the characteristics of the data source, the requirements of the database establishing, studies the theory of spatial database, ComGIS and some relative key technique, discusses the ...
An Enterprise Database-Centric Approach for Geospatial Image Management and Processing
Spatial Databases Raster Data Data Management Image Processing Query Processing Database Software
2015/12/11
Geoimagery and raster gridded data are growing exponentially. As a result, we face many challenges. This paper discusses two of the major challenges. One is how to effectively and efficiently archive,...
E-Government Concept and Spatial Information:a Case Study in Islamic Republic of Iran
E-Government Spatial Data Infrastructure Data management Digital Mapping
2015/12/11
As an accepted definition, E-governments can be considered as use of information and communication technology in public administrations combined with an organizational change and new skills in order t...
Building Detection and Reconstruction from Aerial Images
Building Detection Reconstruction Aerial Image Feature
2015/12/9
This paper presents a new method for building detection and reconstruction from aerial images. In our approach, we extract the useful building location information from the generated disparity map to ...
Motion-Stereo Double Matching Restriction in 3D Motion Analysis
Image matching Stereo-motion Sequence image 3D reconstruction 3D motion analysis
2015/12/9
In order to realize the correspondence of arbitrariness object-side feature points of movement object in the different time in 3D motion analysis based on binocular sequence images, Aiming at the fact...
Energy Function Behanior in Optimization Based Image Sequence Stabilization in Presence of Moving Objects
Registration Transformation Visualization Orientation Correlation Image Sequences Aerial
2015/12/9
In this paper, we address the registration of two images as an optimization problem within indicated bounds. Our contribution is to identify such situations where the optimum value represents the real...
Automatic Edge Matching Across an Image Sequence Based on Reliable Points
Image sequence Video Edge Matching Analysis Reconstruction
2015/12/9
This paper presents a new method for matching edges across a video image sequence. The method can deal with uncalibrated images acquired with a hand held camera. Compared to previous work, the method ...