搜索结果: 1-15 共查到“测绘科学技术 2D”相关记录32条 . 查询时间(0.203 秒)
1D-2D MODELING OF URBAN FLOODS AND RISK MAP GENERATION FOR THE PART OF HYDERABAD CITY
Stormwater Urban Flood Modeling Zone XIII SWMM PCSWMM
2019/2/27
Space for water is now becoming guiding principle of urban planning because urban flooding is the major problem facing by most of the cities in India. Urban development in developing countries like In...
针对2D/3D点包含判定方法的复杂和低效问题，提出基于点圆理论的方法：分类描述奇异情形在点圆中的投影、叠加特征及判定方法，将3D点包含测试转换为与2D点包含测试一致的算法（除子平面方程系数计算外）。筛选和累加与射线相交的射线以上或以下的线段，据此奇偶性判定3D或2D点包含；解析2D射线与多边形相交连续线段内节点的几何特征，即y坐标要么都大于、要么都小于测试点，构建高效2D点包含增量筛选射线法。实验...
PHOTOGRAMMETRIC TECHNIQUES FOR ANALYSIS AND VISUALIZATION OF CHANGES IN 2D AND 3D DATA: PLASTIC SURGERY APPLICATION
Photogrammetry 3Dreconstruction shape changes visualization human body texturing data fusion
2017/6/19
Accurate measurements of 3D scenes and change detection of spatial distributed data are of great importance in different areas of research and application. For more accurate data analysis it is useful...
AN INDOOR NAVIGATION APPROACH CONSIDERING OBSTACLES AND SPACE SUBDIVISION OF 2D PLAN
Indoor Navigation Obstacles Space Subdivision Navigation Network Shortest Path 2D Plan
2016/11/8
The demand for indoor navigation is increasingly urgent in many applications such as safe management of underground spaces or location services in complex indoor environment, e.g. shopping centres, ai...
EVALUATION OF THE USER STRATEGY ON 2D AND 3D CITY MAPS BASED ON NOVEL SCANPATH COMPARISON METHOD AND GRAPH VISUALIZATION
Eye-tracking User Perception Search Strategy
2016/7/8
The paper is dealing with scanpath comparison of eye-tracking data recorded during case study focused on the evaluation of 2D and 3D city maps. The experiment contained screenshots from three map port...
EXPLORATORY USER STUDY TO EVALUATE THE EFFECT OF STREET NAME CHANGES ON ROUTE PLANNING USING 2D MAPS
Street name changes Eye tracking Route planning
2016/7/8
This paper presents the results of an exploratory user study using 2D maps to observe and analyse the effect of street name changes on prospective route planning. The study is part of a larger researc...
2D Sub-Pixel Disparity Measurement Using QPEC/Medicis
2D Stereo Matching Sub-pixel Disparity Geometric Calibration QPEC Medicis
2016/7/4
In the frame of its earth observation missions, CNES created a library called QPEC, and one of its launcher called Medicis. QPEC / Medicis is a sub-pixel two-dimensional stereo matching algorithm that...
When we map an area or create a digital database for it, the first task is often to partition the space into smaller units.There are traditionally two methods of partition called vector and raster. A ...
IMPROVING 2D CHANGE DETECTION BY USING AVAILABLE 3D DATA
Remote Sensing Change Detection Updating Segmentation 3D Object Oriented
2015/12/31
Change detection with very high resolution imagery is difficult, because 3D objects as buildings appear differently in 2D imagery due to varying viewing angles and sun positions. This research propose...
On the Graph-Based Panorama Construction for 2D Large-Scale Microscope Images
mosaicing graph panoramic image spanning tree
2015/12/16
On analysis of existing images mosaicing methods, the conception of mosaicing graph is introduced and some principles to construct
high quality panorama are presented in the paper. Image registration...
A Test of 2D Building Change Detection Methods: Comparison, Evaluation and Perspectives
Change Detection 2D Vector Databases Algorithms Comparison Quality Assessment
2015/12/16
In the past few years, 2D topographic databases have been completed in most industrialised countries. Most efforts in National Mapping and Cadastral Agencies (NMCAs) are now devoted to the update of s...
REPRESENTATION OF GRADIENTS OF A SCALAR FIELD ON THE SPHERE USING A 2D FOURIER EXPRESSION
2D Fourier series gradients representation coefficients D-functions spectral transfers
2016/1/18
Representation of data on the sphere is conventionally done using spherical harmonics. Making use of the Fourier series of the Legendre function in the SH representation results in a 2D Fourier expres...
Connected 2D and 3D Visualizations for the Interactive Exploration of Spatial Information
Geovisualization Three-dimensional representation Interactive
2015/12/3
This paper describes the concepts and the successful prototypal implementation of interactively connected 2D information visualizations and data displays in 3D virtual environments for the interactive...
A Neural Network Algorithm for Vectorization of 2D Maps
Spatial Information Sciences Analysis Artificial_Intelligence Accuracy CAD
2015/12/2
In the last twenty-five years a great number of vectorization methods were developed. In this paper we first give an overview about the most known methods, and then propose a vectorization algorithm b...
Generative Models and Markov Chain Monte Carlo Techniques for Detection and Reconstruction of Stairs from 2D Point Clouds
Building Stairs Detection Reconstruction Markov Chain Monte Carlo MAP Estimation Generative Model Point Cloud
2015/10/12
The paper describes an approach for the automatical reconstruction of homogeneous straight stairs from point cloud data by using a
generative model and Markov Chain Monte Carlo techniques for estima...