搜索结果: 151-165 共查到“测绘科学技术 Digital”相关记录587条 . 查询时间(0.123 秒)
The Study on The Technique of The 3D GIS Modeling Based on The Digital Photogrammetry
3D Geographical information system (GIS) Digital photogrammetry 3D Modeling Data structures Digital campus
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2015/12/9
With the rapid development of applications in 3D GIS, the defects in 2D GIS, which is no intuitive feelings, no convenient to manage the space object and no certainty to express the information and so...
Automatic Peaks Extraction from Normalized Digital Surface Model (NDSM);
Remote Sensing DEM Peaks Photogrammetry NSDM Morphology
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2015/12/9
Automatically extraction of peaks from 3D Digital models such as Digital Elevation model (DEM),Digital surface model (DSM) and Normalized Digital surface model (NDSM) is as important as image comprehe...
Measurements of Forest Inventory Parameters on Terrestrial Laser Scanning Data Using Digital Geometry and Topology
digital geometry digital topology image processing skeletonization
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2015/12/8
This paper gives some mathematical methods for the automatic analysis and determination of forest management parameters in particular for the measurements of geometrical sizes on terrestrial scanning ...
Derivation of Digital Terrain Model in Forested Area with Airborne LIDAR Data
Remote Sensing LiDAR filtering DTM in forested area multiple pulses height variation analysis
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2015/12/8
Detailed high-resolution digital terrain model can be obtained in open area using airborne laser scanning technique. But in forested area, how to extract high accuracy digital terrain model still need...
Digital Photogrammetry in Obtaining of 3D Model Data of Irregular Small Surfaces
3D Modelling Digital Close Range Photogrammetry Data
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2015/12/8
Today, 3D models are used in a wide variety of fields. The medical industry uses detailed models of organs. The movie industry uses them as characters and objects for animated and real-life motion pic...
Using in Volume Computing of Digital Close Range Photogrammetry
Volume Computing 3D Model Close Range Photogrammetry
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2015/12/8
It is important to know cutting and filling volumes in many survey, engineering and mining works. Volume calculation, generally, are completed with classic surveying methods. The trapezoidal method (r...
Estimation of Unknown Height with Artificial Neural Network on Digital Terrain Model
Artifcial Neural Network DEM/DTM Modelling Prediction Accuracy
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2015/12/8
In Digital Terrain Models (DTM) interpolation is actually a surface fitting problem. For the estimation of heights of points with known X-Y coordinates there are many interpolation methods. Besides, t...
Automated Updating of Building Data Bases from Digital Surface Models and Multi-Spectral Images: Potential and Limitations
Change Detection Digital Surface Models Data Fusion
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2015/12/4
A method for automatic updating of building data bases from Digital Surface Models (DSM) and a normalised difference vegetation index is evaluated. The DSM can be generated from Airborne Laserscanner ...
An Efficient Approach to Building Superstructure Reconstruction Using Digital Elevation Maps
Building modeling Digital Elevation Map model-based reconstruction
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2015/12/4
This paper describes an efficient method for detecting and modeling roof superstructures (detailed volumes present on roofs such as chimneys, dormer windows...) using only a Digital Elevation Ma...
SWDC-4 Large Format Digital Aerial Camera System
Digital Aerial Camera Calibration Accuracy Analysis
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2015/12/4
Digital aerial imaging becomes a hot topic since the ISPRS congress 2000 in Amsterdam.
Trends in Digital Photogrammetry from an International Enterprise Perspective
Digital camera mapping work flow data management system configuration capacity building
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2015/12/3
The internet hype for aerial and satellite images, kicked off by Google (Google Earth), Microsoft (Virtual Earth), and others, is giving the Photogrammetry, Remote Sensing, and GIS markets a tremendou...
Digital Earth Science Platform:DESP/CAS
Digital Earth Prototype System Digital Earth Science Platform
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2015/12/3
On the basis of Digital Earth Prototype System（DEPS/CAS）version 1.0, the Center for Earth Observation and Digital Earth of the Chinese Academy of Sciences is developing the Digital Earth Science Platf...
Digital Terrain Modeling in a GIS Environment
Accuracy Assessment 3D Modeling DTM/DSM 3D GIS and Interpolation errors
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2015/12/3
Digital terrain models (DTMs) in recent times have become an integral part of National Spatial Data Infrastructure (NSDI) of many countries world-wide due to their invaluable importance. DTMs play a m...
The Future of Virtual Globes - the Interactive Ray-Traced Digital Earth
Visualization 3D Data Structure Aerial Photogrammetry Data Integration
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2015/12/3
In the past ten years graphics cards have been drastically improved. Being pushed by the multi-billion dollar computer game industry the capabilities and performance of graphics processors (GPUs) incr...
Automated Quality Control of Digital Terrain Models
Photogrammetry DEM/DTM Error Quality Correlation
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2015/12/3
The paper demonstrates modified cross-correlation methods to detect height errors of DTM points based on stereo-pairs of aerial images. The usual cross-correlation method is extended using dynamic dim...