scholarly journals A Robust and Versatile Pipeline for Automatic Photogrammetric-Based Registration of Multimodal Cultural Heritage Documentation

2020 ◽  
Vol 12 (12) ◽  
pp. 2051
Author(s):  
Anthony Pamart ◽  
François Morlet ◽  
Livio De Luca ◽  
Philippe Veron
Keyword(s):  
Data Fusion ◽  
Cultural Heritage ◽  
Structure From Motion ◽  
Imaging Techniques ◽  
Multiple Modalities ◽  
Global Orientation ◽  
Spectral Bands ◽  
Image Based Modeling ◽  
Photo Documentation ◽  
Iterative Registration

Imaging techniques and Image Based-Modeling (IBM) practices in the field of Cultural Heritage (CH) studies are nowadays no longer used as one-shot applications but as various and complex scenarios involving multiple modalities; sensors, scales, spectral bands and temporalities utilized by various experts. Current use of Structure from Motion and photogrammetric methods necessitates some improvements in iterative registration to ease the growing complexity in the management of the scientific imaging applied on heritage assets. In this context, the co-registration of photo-documentation among other imaging resources is a key step in order to move towards data fusion and collaborative semantic enrichment scenarios. This paper presents the recent development of a Totally Automated Co-registration and Orientation library (TACO) based on the interoperability of open-source solutions to conduct photogrammetric-based registration. The proposed methodology addresses and solves some gaps in term of robustness and versatility in the field of incremental and global orientation of image-sets dedicated to CH practices.

scholarly journals Cultural Heritage: An example of graphical documentation with automated photogrammetric systems

2014 ◽  
Vol XL-5 ◽  
pp. 251-255 ◽  
Author(s):  
M. G. Giuliano
Keyword(s):  
Data Processing ◽  
Cultural Heritage ◽  
Data Acquisition ◽  
Camera Calibration ◽  
Structure From Motion ◽  
3D Model ◽  
Digital Camera ◽  
Total Station ◽  
Image Based Modeling ◽  
South West

In the field of Cultural Heritage, the use of automated photogrammetric systems, based on <i>Structure from Motion</i> techniques (SfM), is widely used, in particular for the study and for the documentation of the ancient ruins. This work has been carried out during the PhD cycle that was produced the "Carta Archeologica del territorio intorno al monte Massico". The study suggests the archeological documentation of the mausoleum "Torre del Ballerino" placed in the south-west area of Falciano del Massico, along the Via Appia. The graphic documentation has been achieved by using photogrammetric system (Image Based Modeling) and by the classical survey with total station, Nikon Nivo C. The data acquisition was carried out through digital camera <i>Canon EOS 5D Mark II with Canon EF 17&ndash;40 mm f/4L USM @ 20 mm</i> with images snapped in RAW and corrected in <i>Adobe Lightroom</i>. During the data processing, the camera calibration and orientation was carried out by the software Agisoft Photoscans and the final result has allowed to achieve a scaled 3D model of the monument, imported in software <i>MeshLab</i> for the different view. Three orthophotos in <i>jpg</i> format were extracted by the model, and then were imported in AutoCAD obtaining façade’s surveys.

Combined neutron imaging techniques for cultural heritage purpose

2009 ◽  
Author(s):  
T. Materna ◽  
Jan Jolie ◽  
Andreas Zilges ◽  
Nigel Warr ◽  
Andrey Blazhev ◽  
...  
Keyword(s):  
Cultural Heritage ◽  
Imaging Techniques ◽  
Neutron Imaging

Integrated Multi-Scalar Approach for 3D Cultural Heritage Acquisitions

2019 ◽  
pp. 443-468
Author(s):  
Michele Russo ◽  
Anna Maria Manferdini
Keyword(s):  
Cultural Heritage ◽  
Structure From Motion ◽  
Gold Standard ◽  
3D Models ◽  
Qualitative And Quantitative ◽  
Digital Representations ◽  
Architectural Survey ◽  
Quantitative Evaluations

This contribution presents the results of investigations on the reliability of techniques based on the Structure from Motion approach used for 3D digitizations of build heritage. In particular, we tested the performances of different SfM technologies within an architectural survey context and we developed a procedure with the purpose of easing the work of surveyors called to restore digital representations of artifacts at different scales of complexity. The restored 3D models were compared among each other and with a gold standard acquisition. These analysis led to qualitative and quantitative evaluations and to considerations on times and skills required by all tested technologies. In this work strengths and weaknesses are highlighted and the integration of different technologies is presented, as it represents the best solution in many and recurrent multi-scalar contexts.

scholarly journals Wall Mosaics: A Review of On-Site Non-Invasive Methods, Application Challenges and New Frontiers for Their Study and Preservation

2020 ◽  
Vol 6 (10) ◽  
pp. 108
Author(s):  
Antonina Chaban ◽  
Rita Deiana ◽  
Vivi Tornari
Keyword(s):  
Cultural Heritage ◽  
Direct Contact ◽  
Review Paper ◽  
Imaging Techniques ◽  
Specific Context ◽  
Humidity Effects ◽  
Non Invasive ◽  
Future Developments ◽  
World Cultural Heritage ◽  
Depth Of Investigation

This review concerns the challenges and perspectives of on-site non-invasive measurements applied to wall mosaics. Wall mosaics, during the centuries, decorated numerous buildings, nowadays being part of world cultural heritage. The preservation and maintenance of these valuable decorations are undoubtedly directly dependent on identifying possible problems that could affect their hidden structure. On-site non-invasive methods, using different contact or no-contact technologies, can offer support in this specific field of application. The choice of the appropriate technique or combination of different techniques depends, in general, on the depth of investigation, the resolution, the possibility to have direct contact with the surfaces or, on the contrary, limited accessibility of the wall mosaics due to their location (e.g., vaults), as well as deterioration problems, (e.g., voids, detachments, or humidity effects). This review paper provides a brief overview of selected recent studies regarding non-invasive methods applied to the analysis of wall mosaics. This review, discussing the assessment of advantages and limitations for each method here considered, also considers possible future developments of imaging techniques in this specific context for cultural heritage applications.

scholarly journals Multimodality cardiac imaging in the 21st century: evolution, advances and future opportunities for innovation

2021 ◽  
Vol 94 (1117) ◽  
pp. 20200780
Author(s):  
Melissa A Daubert ◽  
Tina Tailor ◽  
Olga James ◽  
Leslee J Shaw ◽  
Pamela S Douglas ◽  
...  
Keyword(s):  
21St Century ◽  
Cardiac Imaging ◽  
Cardiac Ct ◽  
Imaging Techniques ◽  
Turn Of The Century ◽  
Clinical Workflow ◽  
Multiple Modalities ◽  
Non Invasive ◽  
The Past ◽  
Technological Developments

Cardiovascular imaging has significantly evolved since the turn of the century. Progress in the last two decades has been marked by advances in every modality used to image the heart, including echocardiography, cardiac magnetic resonance, cardiac CT and nuclear cardiology. There has also been a dramatic increase in hybrid and fusion modalities that leverage the unique capabilities of two imaging techniques simultaneously, as well as the incorporation of artificial intelligence and machine learning into the clinical workflow. These advances in non-invasive cardiac imaging have guided patient management and improved clinical outcomes. The technological developments of the past 20 years have also given rise to new imaging subspecialities and increased the demand for dedicated cardiac imagers who are cross-trained in multiple modalities. This state-of-the-art review summarizes the evolution of multimodality cardiac imaging in the 21st century and highlights opportunities for future innovation.

scholarly journals Minimal Camera Networks for 3D Image Based Modeling of Cultural Heritage Objects

Sensors ◽  
2014 ◽  
Vol 14 (4) ◽  
pp. 5785-5804 ◽  
Author(s):  
Bashar Alsadik ◽  
Markus Gerke ◽  
George Vosselman ◽  
Afrah Daham ◽  
Luma Jasim
Keyword(s):  
Cultural Heritage ◽  
Camera Networks ◽  
3D Image ◽  
Image Based Modeling ◽  
Cultural Heritage Objects

scholarly journals Fusing magnetic resonance imaging data for studying ventricular fibrillation.

2021 ◽  
Author(s):  
Karl Magtibay
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Ventricular Fibrillation ◽  
Data Fusion ◽  
Diffusion Tensor ◽  
Imaging Techniques ◽  
Data Sets ◽  
Imaging Data ◽  
Resonance Imaging ◽  
True Nature

Ventricular Fibrillation (VF) has been described as seemingly random activations on the ventricles of the mammalian heart and is one of the causes of Sudden Cardiac Deaths (SCD). Medical imaging techniques, such as Magnetic Resonance Imaging (MRI), could potentially provide a better way of collecting data and understanding the true nature of VF than the techniques that are currently being employed. In addition, as there is a wide variety of MR techniques, fusing and jointly analyzing complementary data sets could also prove beneficial in providing parameters that are informative in studying VF and are otherwise unobservable by inspection. In this thesis, the author explores the quantification of the combination of MRI techniques, Current Density Imaging (CDI) and Diffusion Tensor Imaging (DTI), as novel tools for studying VF. This was accomplished by performing two feature-based data fusion techniques, Joint Independent Component Analysis (jICA) and Canonical Correlation Analysis (CCA). Using 12 imaging data sets from 10 live porcine heart experiments, both data fusion techniques provided unique ways from which the variations of CDI and DTI data sets were used to distinguish cardiac states. The results obtained by the jICA approach demonstrated discrimination between VF and non-VF subjects (p = 0:020) using the jICA loadings with evidence of a significant increase in the mutual information post fusion. For the CCA approach, using the pairwise mixing profiles, we observed discrimination between VF and non-VF subjects (p = 0:023) with a 7.25% increase in average correlation between the modalities, post fusion. The results of the study demonstrate that the fusion of CDI and DTI data sets captures and enhances the variations in electrical current pathways in relation to a myocardial structure that are unique to a cardiac state, such as VF. This study serves as a strong precursor for exploring MRI and data fusion techniques in studying VF. Such a study could provide greater insights on VF characteristics inspiring better treatment options for patients vulnerable to VF.

scholarly journals 3D SURVEYING AND MODELLING OF ROMAN MONUMENT WITH ARCH

2019 ◽  
Vol XLII-2/W15 ◽  
pp. 509-512
Author(s):  
I. Giannaris ◽  
M. Gerotziafa ◽  
M. Prantsidi ◽  
E. Karachaliou ◽  
E. Stylianidis
Keyword(s):  
Computer Vision ◽  
Cultural Heritage ◽  
Structure From Motion ◽  
Spatial Planning ◽  
Current Work ◽  
Preventive Actions ◽  
The Status ◽  
Time Accuracy

<p><strong>Abstract.</strong> Preventive actions of cultural heritage could be carried out using photogrammetry and computer vision techniques. Structure from Motion (SfM) techniques have been proved to be one of the best solutions for the cultural heritage field in terms of cost, time, accuracy and quality. The current work uses a commercial SfM – based software to generate orthoimages of the Arch of Galerius in Thessaloniki, Greece. This is part of students' project in the framework of an undergraduate course in the School of Spatial Planning and Development, Thessaloniki, Greece, to investigate the status of the Roman monument.</p>

scholarly journals Geomatics Techniques for Cultural Heritage Dissemination in Augmented Reality: Bronzi di Riace Case Study

Heritage ◽  
2019 ◽  
Vol 2 (3) ◽  
pp. 2243-2254 ◽  
Author(s):  
Vincenzo Barrile ◽  
Antonino Fotia ◽  
Gabriele Candela ◽  
Ernesto Bernardo
Keyword(s):  
Augmented Reality ◽  
Cultural Heritage ◽  
3D Model ◽  
Imaging Techniques ◽  
Archaeological Heritage ◽  
Additional Information ◽  
Digital Production ◽  
Returns On Investment ◽  
Visitor Numbers

The Riace Bronzes are two full-size bronzes cast around the 5th century BC, located at the ‘Museo Archeologico Nazionale della Magna Grecia’ in Reggio Calabria; they truly represent significant sculptural masterpieces of Greek art in the world due to their outstanding manufacture. This paper describes the methodology for the achievement of a 3D model of the two sculptures lead by the Geomatics Laboratory of the Department of Civil, Energetic, Environmental and Material Engineering (DICEAM) of the Mediterranean University of Reggio Calabria. 3D modeling is based on the use of imaging techniques such as digital photogrammetry and computer vision. The achieved results demonstrate the effectiveness of the technique used in the cultural heritage field for the creation of a digital production and replication through 3D printing. Moreover, when considering renewed interest in the context of international museological studies, augmented reality (AR) innovation represents a new method for amplifying visitor numbers into museums despite concerns over returns on investment. Thus, in order to further valorize and disseminate archaeological heritage, we are developing an app for tourism purposes. The created app allows the user, in real time, to obtain additional information on the object of investigation, even allowing them to view the 3D model in AR.

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