搜索结果: 46-60 共查到“知识库 摄影测量与遥感技术其他学科”相关记录433条 . 查询时间(2.335 秒)
太湖水体上行漫射衰减系数的变化特征研究
上行漫射衰减系数 太阳高度角 空间分布 太
2013/11/11
水体上行漫射衰减系数是反映水体中上行光强衰减的重要光学参数,它直接影响着水下光场分布,对水环境生态系统变化具有重要意义.然而,对于太湖水体而言,上行漫射衰减系数的变化特征尚不明确.为此,本课题组于2010年4月29日到5月2日对太湖水体28个采样点进行了野外原位观测,获取了相应的水体光学参数和水质参数数据集.在分析水体上行衰减系数光谱特征和空间分布特征的基础上,对其与太阳高度角、悬浮物浓度和叶绿素...
利用卫星遥感技术对大中型桥梁进行识别定位，在民用上和军事上都具有很重要的意义。本研究提出了一套利用基元对象关系特征提取高分辨率卫星影像中水上桥梁的技术方法。首先利用多尺度分割算法对高分辨率卫星影像进行分割，利用水体指数或GLCM 同质性纹理特征区分河水和陆地；其次，利用对象形状特征和相邻的关系特征提取桥梁潜在区；将河流片段和桥梁潜在区专题二值化，利用数学形态学算子实现河流水面的连续化；最后利用叠加...
OPENWEBGLOBE – AN OPEN SOURCE SDK FOR CREATING LARGE-SCALE VIRTUAL GLOBES ON A WEBGL BASIS
Visualization, Algorithms Virtual Reality Web based Point Cloud Three-dimensional Triangulation
2014/4/28
This paper introduces the OpenWebGlobe project (www.openwebglobe.org) and the OpenWebGlobe SDK (Software Development
Kit) – an open source virtual globe environment using WebGL. Unlike other (web-ba...
A LOCAL ADAPTIVE APPROACH FOR DENSE STEREO MATCHING IN ARCHITECTURAL SCENE RECONSTRUCTION
Matching, Correlation Surface Reconstruction Point Cloud
2014/4/25
In recent years, a demand for 3D models of various scales and precisions has been growing for a wide range of applications; among
them, cultural heritage recording is a particularly important and ch...
CREATING PROCEDURAL WINDOW BUILDING BLOCKS USING THE GENERATIVE FACT LABELING METHOD
Procedural Modeling Neo-Classical Architecture 3D-Reconstruction Shape Grammars Fact Labeling Method
2014/4/25
The generative surface reconstruction problem can be stated like this: Given a finite collection of 3D shapes, create a small set of
functions that can be combined to generate the given shapes ...
CRABNEBULA DIGITAL SUITE, AN ALGORITHM OF SURVEY AND 3D MODELLING FOR THE PRESERVATION AND MANAGEMENT OF URBAN HERITAGE
Urban Survey, Architectonic Survey, 3D Modelling, Digital Suite, Web Application, Qr Code, Augmented Reality
2014/4/25
Safeguarding the cultural patrimony represents one of the objectives and one of the most important challenges of our time, because
only this can ensure the conservation of the documented historical ...
ACCURATE MULTIVIEW STEREO RECONSTRUCTION WITH FAST VISIBILITY INTEGRATION AND TIGHT DISPARITY BOUNDING
Multiview Stereo, Image-based Modelling, Surface Reconstruction, Structure from Motion
2014/4/25
A novel multi-view stereo reconstruction method is presented. The algorithm is focused on accuracy and it is highly engineered with
some parts taking advantage of the graphics processing unit. In add...
IMAGE ACQUISITION AND MODEL SELECTION FOR MULTI-VIEW STEREO
Photogrammetry, Surface Reconstruction, Multi-View Stereo, Dense Image Matching, Structure from Motion
2014/4/25
Dense image matching methods enable efficient 3D data acquisition. Digital cameras are available at high resolution, high geometric
and radiometric quality and high image repetition rate. They can b...
DISTRIBUTION OF SEMANTIC ANNOTATIONS TOWARDS A SET OF SPATIALLY-ORIENTED PHOTOGRAPHS
Cultural heritage photogrammetry image-based modelling image processing, semantic annotation
2014/4/25
Today with the development of new information technologies, the domain of conservation and promotion of cultural heritage benefits
from new tools to disseminate knowledge on heritage buildings. Thes...
SHADOWS OF PREVIOUS DAYS A JOURNEY INTO DIGITAL RECONSTRUCTION
igital Photogrammetry virtual Reconstruction close range scanning surface modelling duplicate
2014/4/25
In November 2011 the listed state rooms on the second floor of the Viennese city palace Am Hof 2 were largely destroyed by fire.
The historic rooms on the ground floor, the monumental, marble-clad b...
RELIABLE EXTERIOR ORIENTATION BY A ROBUST ANISOTROPIC ORTHOGONAL PROCRUSTES ALGORITHM
Robust Methods Anisotropic Orthogonal Procrustes Analysis Camera Exterior Orientation
2014/4/25
The paper presents a robust version of a recent anisotropic orthogonal Procrustes algorithm that has been proposed to solve the socalled camera exterior orientation problem in computer vision and phot...
REVIEW OF THE « AS-BUILT BIM » APPROACHES
Point clouds Building Information Modeling, s-built BIM object recognition geometric modeling historical building
2014/4/25
Today, we need 3D models of heritage buildings in order to handle more efficiently projects of restoration, documentation
and maintenance. In this context, developing a performing approach, based on...
SEMI-AUTOMATIC MODELLING OF BUILDING FAÇADES WITH SHAPE GRAMMARS USING HISTORIC BUILDING INFORMATION MODELLING
HBIM BIM Laser Scanning Parametric Modelling, Procedural Modelling Shape Grammars Architectural Modelling
2014/4/25
This paper outlines a new approach for generating digital heritage models from laser scan or photogrammetric data using Historic
Building Information Modelling (HBIM). HBIM is a plug-in for Building...
LASER SCANNING FOR THE GEOMETRIC STUDY OF THE ALCáNTARA BRIDGE AND CORIA CATHEDRAL
Modelling, Arquitecture TLS Cultural heritage Structure.
2014/4/25
The conservation of built heritage is becoming increasingly important, and may even be an obligation for future
generations. Techniques must therefore be developed to help document heritage and thus...