搜索结果: 151-165 共查到“知识库 全息技术和三维成像”相关记录474条 . 查询时间(1.99 秒)
Accuracy of typical photogrammetric networks in cultural heritage 3D modeling projects
Accuracy Photogrammetry Convergent Bundle block adjustment Network Cultural Heritage
2014/6/30
The easy generation of 3D geometries (point clouds or polygonal models) with fully automated image-based methods poses nontrivial problems on how to check a posteriori the quality of the achieved resu...
A non-conventional procedure for the 3D modeling of WWI forts
CAD Modeling Cultural Heritage Rectification Digitisation Visualization Photogrammetry Laser Scanning
2014/6/30
2014 is the hundredth anniversary of the outbreak of the First World War (WWI) – or Great War – in Europe and a number of initiatives have been planned to commemorate the tragic event. Until 1918, the...
Point cloud-based survey for cultural heritage – An experience of integrated use of range-based and image-based technology for the San Francesco convent in Monterubbiano
SFM TOF laser scanning UAV 3D data integration
2014/6/30
The paper aims at presenting some results of a point cloud-based survey carried out through integrated methodologies based on active and passive 3D acquisition techniques for processing 3D models. Thi...
3D Case Studies of Monitoring Dynamic Structural Tests using Long Exposure Imagery
Vibration Engineering Monitoring Long Exposure Imagery Image Processing Close Range Photogrammetry
2014/6/30
Structural health monitoring uses non-destructive testing programmes to detect long-term degradation phenomena in civil engineering structures. Structural testing may also be carried out to assess a s...
An Integrated Flexible Self-calibration Approach for 2D Laser Scanning Range Finders Applied to the Hokuyo UTM-30LX-EW
LIDAR laser range finder terrestrial laser scanning error model calibration bundle adjustment variance component estimation
2014/6/30
The paper presents a flexible approach for the geometric calibration of a 2D infrared laser scanning range finder. It does not require spatial object data, thus avoiding the time-consuming determinati...
Modelling the appearance of heritage metallic surfaces
Cultural Heritage Imaging 3D model Photogrammetry Photometric stereo Rendering Specularity
2014/6/30
Polished metallic surfaces exhibit a high degree of specularity, which makes them difficult to reproduce accurately. We have applied two different techniques for modelling a heritage object known as t...
Eccentricity in Images of Circular and Spherical Targets and its Impact to 3D Object Reconstruction
Spherical target circular target sphere eccentricity spatial intersection simulation
2014/6/30
This paper discusses a feature of projective geometry which causes eccentricity in the image measurement of circular and spherical targets. While it is commonly known that flat circular targets can ha...
Three-dimensional imaging of hold baggage for airport security
Three-dimensional X-Ray Image Close Range Photogrammetry
2014/6/30
This study describes a cost-effective check-in baggage screening system, based on "on-belt tomosynthesis" (ObT) and close-range photogrammetry, that is designed to address the limitations of the most ...
3D Modeling By Consolidation Of Independent Geometries Extracted From Point Clouds – The Case Of The Modeling Of The Turckheim's Chapel (Alsace, France)
3D Modeling 3D CAD geometric consolidation cultural heritage
2014/6/30
In the heart of the Alsatian vineyard, this city has many historical monuments including its old church. To understand the effectiveness of the project described in this paper, it is important to have...
3D Modelling of Interior Spaces: Learning the Language of Indoor Architecture
Indoor modelling Point cloud Shape grammar Automation Semantics Building Information Model (BIM)
2014/6/30
3D models of indoor environments are important in many applications, but they usually exist only for newly constructed buildings. Automated approaches to modelling indoor environments from imagery and...
Congruence analysis of point clouds from unstable stereo image sequences
Stereo image matching 3D point tracking congruence analysis
2014/6/30
This paper deals with the correction of exterior orientation parameters of stereo image sequences over deformed free-form surfaces without control points. Such imaging situation can occur, for example...
A novel high accuracy 3D scanning device for rock-art sites
Stereo Structure from Motion drift compensation tachymeter
2014/6/30
We are currently developing a novel 3D scanning device for rock-art. Within the European project 3D-Pitoti, this scanner shall be used to acquire 3D structure and radiometric surface properties of anc...
Image-based 3D modeling for the knowledge and the representation of archaeological dig and pottery: Sant'Omobono and Sarno project's strategies
Photogrammetry Laser Scanning image-based 3D modeling 3D cataloguing Cultural Heritage
2014/6/30
This paper presents a "standard" method that is being developed by ARESlab of Rome's La Sapienza University for the documentation and the representation of the archaeological artifacts and structures ...
A comparison of semiglobal and local dense matching algorithms for surface reconstruction
DSM Accuracy Matching Reconstruction Comparison Algorithms
2014/6/30
Encouraged by the growing interest in automatic 3D image-based reconstruction, the development and improvement of robust stereo matching techniques is one of the most investigated research topic of th...
Surveying and mapping a cave using 3d laser scanner: the open challenge with free and open source software
Survey 3D laser scanner Open source software Cave Point clouds Mesh
2014/6/30
The present work is part of a series of activities involving different skills, in order to explore and document in detail one of the most visited caves in Liguria Region. In this context, in addition ...