scholarly journals A multidisciplinary approach to digital mapping of dinosaurian tracksites in the Lower Cretaceous (Valanginian–Barremian) Broome Sandstone of the Dampier Peninsula, Western Australia

PeerJ ◽  
2017 ◽  
Vol 5 ◽  
pp. e3013 ◽  
Author(s):  
Anthony Romilio ◽  
Jorg M. Hacker ◽  
Robert Zlot ◽  
George Poropat ◽  
Michael Bosse ◽  
...  
Keyword(s):  
High Resolution ◽  
Western Australia ◽  
Lower Cretaceous ◽  
3D Visualization ◽  
3D Models ◽  
Unmanned Aircraft ◽  
Digital Data ◽  
3D Data ◽  
National Heritage ◽  
Mapping Techniques

The abundant dinosaurian tracksites of the Lower Cretaceous (Valanginian–Barremian) Broome Sandstone of the Dampier Peninsula, Western Australia, form an important part of the West Kimberley National Heritage Place. Previous attempts to document these tracksites using traditional mapping techniques (e.g., surface overlays, transects and gridlines combined with conventional photography) have been hindered by the non-trivial challenges associated with working in this area, including, but not limited to: (1) the remoteness of many of the tracksites; (2) the occurrence of the majority of the tracksites in the intertidal zone; (3) the size and complexity of many of the tracksites, with some extending over several square kilometres. Using the historically significant and well-known dinosaurian tracksites at Minyirr (Gantheaume Point), we show how these issues can be overcome through the use of an integrated array of remote sensing tools. A combination of high-resolution aerial photography with both manned and unmanned aircraft, airborne and handheld high-resolution lidar imaging and handheld photography enabled the collection of large amounts of digital data from which 3D models of the tracksites at varying resolutions were constructed. The acquired data encompasses a very broad scale, from the sub-millimetre level that details individual tracks, to the multiple-kilometre level, which encompasses discontinuous tracksite exposures and large swathes of coastline. The former are useful for detailed ichnological work, while the latter are being employed to better understand the stratigraphic and temporal relationship between tracksites in a broader geological and palaeoecological context. These approaches and the data they can generate now provide a means through which digital conservation and temporal monitoring of the Dampier Peninsula’s dinosaurian tracksites can occur. As plans for the on-going management of the tracks in this area progress, analysis of the 3D data and 3D visualization will also likely provide an important means through which the broader public can experience these spectacular National Heritage listed landscapes.

scholarly journals The Natural Historian's Guide to the CT Galaxy: Step-by-Step Instructions for Preparing and Analyzing Computed Tomographic (CT) Data Using Cross-Platform, Open Access Software

2020 ◽  
Vol 2 (1) ◽  
Author(s):  
T J Buser ◽  
O F Boyd ◽  
Á Cortés ◽  
C M Donatelli ◽  
M A Kolmann ◽  
...  
Keyword(s):  
Open Access ◽  
3D Printing ◽  
3D Visualization ◽  
3D Models ◽  
Digital Data ◽  
Anatomical Structures ◽  
Computed Tomographic ◽  
Biomechanical Models ◽  
Cross Platform ◽  
Ct Data

Synopsis The decreasing cost of acquiring computed tomographic (CT) data has fueled a global effort to digitize the anatomy of museum specimens. This effort has produced a wealth of open access digital three-dimensional (3D) models of anatomy available to anyone with access to the Internet. The potential applications of these data are broad, ranging from 3D printing for purely educational purposes to the development of highly advanced biomechanical models of anatomical structures. However, while virtually anyone can access these digital data, relatively few have the training to easily derive a desirable product (e.g., a 3D visualization of an anatomical structure) from them. Here, we present a workflow based on free, open source, cross-platform software for processing CT data. We provide step-by-step instructions that start with acquiring CT data from a new reconstruction or an open access repository, and progress through visualizing, measuring, landmarking, and constructing digital 3D models of anatomical structures. We also include instructions for digital dissection, data reduction, and exporting data for use in downstream applications such as 3D printing. Finally, we provide Supplementary Videos and workflows that demonstrate how the workflow facilitates five specific applications: measuring functional traits associated with feeding, digitally isolating anatomical structures, isolating regions of interest using semi-automated segmentation, collecting data with simple visual tools, and reducing file size and converting file type of a 3D model.

scholarly journals Visualizing Votive Practice: Exploring Limestone and Terracotta Sculpture from Athienou-Malloura through 3D Models

2020 ◽  
Author(s):  
Derek B. Counts ◽  
Erik Walcek Averett ◽  
Kevin Garstki ◽  
Michael K. Toumazou
Keyword(s):  
High Resolution ◽  
Open Access ◽  
3D Visualization ◽  
Contextual Information ◽  
3D Models ◽  
Data Publishing ◽  
Archaeological Data ◽  
Archaeological Project ◽  
High Resolution Models ◽  
Visualization Techniques

Visualizing Votive Practice is an innovative, open-access, digital monograph that explores the limestone and terracotta sculptures excavated from a rural sanctuary at the site of Athienou-Malloura (Cyprus) by the Athienou Archaeological Project. Chapters on the archaeology of the site, the historiography of Cypriot sculpture, and perspectives on archaeological visualization provide context for the catalogue of 50 representative examples of votive sculpture from the sanctuary. The catalogue not only includes formal and contextual information for each object, but also embeds 3D models directly onto the page. Readers can not only view, but also manipulate, measure, zoom, and rotate each model. Additionally, links at the bottom of each entry unleash high-resolution models with accompanying metadata on the Open Context archaeological data publishing platform and on via the Sketchfab 3D viewing platform as well. This innovative monograph is aimed at a variety of audiences, from Mediterranean archaeologists and students to specialists interested in 3D visualization techniques.

Usefulness of high-resolution 3D multifusion medical imaging for preoperative planning in patients with posterior fossa hemangioblastoma: technical note

2017 ◽  
Vol 127 (1) ◽  
pp. 139-147 ◽  
Author(s):  
Masanori Yoshino ◽  
Hirofumi Nakatomi ◽  
Taichi Kin ◽  
Toki Saito ◽  
Naoyuki Shono ◽  
...  
Keyword(s):  
High Resolution ◽  
Medical Imaging ◽  
Preoperative Planning ◽  
3D Visualization ◽  
Preoperative Assessment ◽  
3D Models ◽  
Technical Note ◽  
Surface Rendering ◽  
Support Tool ◽  
Multiple Thresholds

Successful resection of hemangioblastoma depends on preoperative assessment of the precise locations of feeding arteries and draining veins. Simultaneous 3D visualization of feeding arteries, draining veins, and surrounding structures is needed. The present study evaluated the usefulness of high-resolution 3D multifusion medical imaging (hr-3DMMI) for preoperative planning of hemangioblastoma. The hr-3DMMI combined MRI, MR angiography, thin-slice CT, and 3D rotated angiography. Surface rendering was mainly used for the creation of hr-3DMMI using multiple thresholds to create 3D models, and processing took approximately 3–5 hours. This hr-3DMMI technique was used in 5 patients for preoperative planning and the imaging findings were compared with the operative findings. Hr-3DMMI could simulate the whole 3D tumor as a unique sphere and show the precise penetration points of both feeding arteries and draining veins with the same spatial relationships as the original tumor. All feeding arteries and draining veins were found intraoperatively at the same position as estimated preoperatively, and were occluded as planned preoperatively. This hr-3DMMI technique could demonstrate the precise locations of feeding arteries and draining veins preoperatively and estimate the appropriate route for resection of the tumor. Hr-3DMMI is expected to be a very useful support tool for surgery of hemangioblastoma.

scholarly journals PRODUCING AND VISUALIZATING 3D BUILDING GEODATABASE AS A PART OF 3D CADASTRE PROJECT

2021 ◽  
Vol XLVI-4/W5-2021 ◽  
pp. 239-243
Author(s):  
A. Guntel ◽  
A. C. Aydinoglu
Keyword(s):  
3D Visualization ◽  
Three Dimensional ◽  
Information Modeling ◽  
Digital Data ◽  
Data Sets ◽  
3D Data ◽  
3D Cadastre ◽  
Real Estate Valuation ◽  
Geographic Data ◽  
Building Information

Abstract. Digital data production possibilities have developed with the emerging technologies, and it has become possible to use different data formats together. The usability of three-dimensional (3D) data on various application areas has increased with the multidimensional use of geographic data in established information systems, for 3D visualization, presentation, and analysis. Topography-related analyzes such as digital elevation models, digital terrain models, slope maps and visibility maps can be made from geographic data sets produced in 3D. In addition, the use of 3D data in Building Information Modeling (BIM) has added various innovations for geographic data analysis. In this study, a geographic database was established by taking the vector data produced in the 3D Cadastre project that was carried out by the General Directorate of Land Registry and Cadastre as an example. Data obtained from photogrammetry and architectural projects were used in accordance with the OGC CityGML standard. After creating 3D building database in GIS environment, as result of various visualization and analysis techniques, the contributions of this project to BIM were revealed for various applications such as real estate valuation, disaster management, renewable energy, 3D city models, and smart city projects.

scholarly journals Challenges and Directions in 3D and VR Data Curation

1970 ◽  
Vol 14 (1) ◽  
pp. 150-167
Author(s):  
Nathan Frank Hall ◽  
Juliet Hardesty ◽  
Zack Lischer-Katz ◽  
Jennifer Johnson ◽  
Matt Cook ◽  
...  
Keyword(s):  
3D Visualization ◽  
Research Integrity ◽  
Nominal Group Technique ◽  
3D Models ◽  
Nominal Group ◽  
Great Promise ◽  
Data Sets ◽  
Data Annotation ◽  
3D Data ◽  
The Creation

This study identifies challenges and promising directions in the curation of 3D data. 3D visualization shows great promise for a range of scholarly fields through interactive engagement with and analysis of spatially complex artifacts, spaces, and data. While the new affordability of emerging 3D capture technologies presents greater academic possibilities, academic libraries need more effective workflows, policies, standards, and practices to ensure that they can support the creation, discovery, access, preservation, and reproducibility of 3D data sets. This study uses nominal group technique with invited experts across several disciplines and sectors to identify common challenges in the creation and re-use of 3D data for the purpose of developing library strategy for supporting curation of 3D data. This article identifies staffing needs for 3D imaging; alignment with IT resources; the roll of archivists in addressing unique challenges posed by these datasets; the importance of data annotation, metadata, and transparency for research integrity and reproducibility; and features for storage, access, and management to facilitate re-use by researchers and educators. Participants identified three main challenges for supporting 3D data that align with the strengths of libraries: 1) development of crosswalks and aggregation tools for discipline-specific metadata models, data dictionaries for 3D research, and aggregation tools for expanding discovery; 2) development of an open source viewer that supports streaming and annotation on archival formats of 3D models and makes archival master files accessible, while also serving derivative files based on user requirements; and 3) widespread of adoption of better documentation and technical metadata for image capture and modeling processes in order to support replicability of research, reproducibility of models, and transparency of scientific process.

scholarly journals Improvement of methods of soil survey of territories using remote sensing and 3d-modeling

2020 ◽  
Vol 149 ◽  
pp. 02004
Author(s):  
Nadezhda Dobrotvorskaya ◽  
Alexandr Chernov
Keyword(s):  
3D Modeling ◽  
3D Models ◽  
Unmanned Aircraft ◽  
Soil Survey ◽  
Unmanned Aircraft Systems ◽  
Digital Data ◽  
Land Resources ◽  
Aircraft Systems ◽  
Digital Elevation ◽  
Modern Solution

The effective planning and use of land resources depends to a large extent on the completeness and relevance of the digital data on the territory concerned. A modern solution for obtaining such data is the use of unmanned aircraft systems, with the presentation of the results in the form of digital elevation models and 3D-models. The article presents the practical results of the use of this technique on the example of a part of the territory with heterogeneous relief, shows its advantages with respect to the use of traditional analog data, the main directions and prospects of use for the rational use of land in land management and design of soil and environmental systems of agriculture.

The 3D Virtual Campus Modeling Based on High Resolution Images from Remote Sensors

2012 ◽  
Vol 170-173 ◽  
pp. 2844-2847
Author(s):  
Zhen Zhi Wu ◽  
Hong Yan Wen ◽  
Gui Wen Lan
Keyword(s):  
Information System ◽  
High Resolution ◽  
3D Visualization ◽  
3D Models ◽  
Management Information ◽  
Remote Sensors ◽  
University Of Technology ◽  
Virtual Reconstruction ◽  
Remotely Sensed Image ◽  
High Resolution Images

With the high resolution remotely sensed image and an old map of the Pingfeng campus of Guilin University of Technology, 3D virtual reconstruction, roaming and buildings management of the campus were accomplished by the usage of ArcGIS to get basic geographic information, applying SketchUp to create 3D models and ArcEngine to develop a management information system. This method takes full advantage of existing data sources and can quickly build a 3D visualization information system.

scholarly journals VISION BASED AUTOMATED ANTHROPOLOGICAL MEASUREMENTS AND ANALYSIS

2019 ◽  
Vol XLII-2/W12 ◽  
pp. 117-122 ◽  
Author(s):  
V. A. Knyaz ◽  
A. A. Maksimov ◽  
M. M. Novikov
Keyword(s):  
Data Analysis ◽  
High Resolution ◽  
Morphometric Analysis ◽  
Automatic System ◽  
3D Models ◽  
Practical Implementation ◽  
3D Data ◽  
Independent Analysis ◽  
Share Data ◽  
2D And 3D

<p><strong>Abstract.</strong> Modern techniques of optical 3D measurements such as photogrammetry, computer tomography, laser 3D scanning provide new possibilities for acquiring accurate 2D and 3D data of high resolution, thus creating new conditions for anthropological data analysis. Traditional anthropological manual point measurements can be substituted by analysis of accurate textured 3D models, which allow to retrieve more information about studied object and easily to share data for independent analysis. The paper presents the vision-based techniques for anthropological measurement and investigation needed in various applications, such as morphometric analysis, craniofacial identification, face approximation and other. Photogrammetric methods and their practical implementation in the automatic system for accurate digital 3D reconstruction of anthropological objects are described.</p>

scholarly journals SYNERGISTIC EXPLOITATION OF GEOINFORMATION METHODS FOR POST-EARTHQUAKE 3D MAPPING OF VRISA TRADITIONAL SETTLEMENT, LESVOS ISLAND, GREECE

2018 ◽  
Vol XLII-3/W4 ◽  
pp. 491-498 ◽  
Author(s):  
N. Soulakellis ◽  
S. Chatzistamatis ◽  
C. Vasilakos ◽  
G. Tataris ◽  
A. Papakonstantinou ◽  
...  
Keyword(s):  
High Resolution ◽  
Spatial Resolution ◽  
Laser Scanning ◽  
Large Scale ◽  
Point Clouds ◽  
3D Models ◽  
Unmanned Aircraft ◽  
Aerial Photographs ◽  
3D Mapping ◽  
The Impact

<p><strong>Abstract.</strong> The aim of this paper is to present the methodology followed and the results obtained by the synergistic exploitation of geo-information methods towards 3D mapping of the impact of the catastrophic earthquake of June 12th 2017 on the traditional settlement of Vrisa on the island of Lesvos, Greece. A campaign took place for collecting: a) more than 150 ground control points using an RTK system, b) more than 20.000 high-resolution terrestrial and aerial images using cameras and Unmanned Aircraft Systems and c) 140 point clouds by a 3D Terrestrial Laser Scanner. The Structure from Motion method has been applied on the high-resolution terrestrial and aerial photographs, for producing accurate and very detailed 3D models of the damaged buildings of the Vrisa settlement. Additionally, two Orthophoto maps and Digital Surface Models have been created, with a spatial resolution of 5&amp;thinsp;cm and 3&amp;thinsp;cm, respectively. The first orthophoto map has been created just one day after the earthquake, while the second one, a month later. In parallel, 3D laser scanning data have been exploited in order to validate the accuracy of the 3D models and the RTK measurements used for the geo-registration of all the above-mentioned datasets. The significant advantages of the proposed methodology are: a) the coverage of large scale areas; b) the production of 3D models having very high spatial resolution and c) the support of post-earthquake management and reconstruction processes of the Vrisa village, since such 3D information can serve all stakeholders, be it national and/or local organizations.</p>

Practical applications of scanning tunneling microscopy

1989 ◽  
Vol 47 ◽  
pp. 18-19
Author(s):  
D. R. Denley
Keyword(s):  
High Resolution ◽  
Scanning Tunneling Microscopy ◽  
Quantitative Information ◽  
Digital Data ◽  
Scanning Tunneling ◽  
Ambient Atmosphere ◽  
Tunneling Microscopy ◽  
Clear Trend ◽  
Practical Applications ◽  
Promising Tool

Scanning tunneling microscopy (STM) has recently been introduced as a promising tool for analyzing surface atomic structure. We have used STM for its extremely high resolution (especially the direction normal to surfaces) and its ability for imaging in ambient atmosphere. We have examined surfaces of metals, semiconductors, and molecules deposited on these materials to achieve atomic resolution in favorable cases.When the high resolution capability is coupled with digital data acquisition, it is simple to get quantitative information on surface texture. This is illustrated for the measurement of surface roughness of evaporated gold films as a function of deposition temperature and annealing time in Figure 1. These results show a clear trend for which the roughness, as well as the experimental deviance of the roughness is found to be minimal for evaporation at 300°C. It is also possible to contrast different measures of roughness.

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