Tutorials

If you have any doubt related with the tutorials, please write an email to: daguilera@usal.es or remondino@fbk.eu

 

August 2nd is the deadline to sign up for Tutorials (a minimum of 10 people per tutorial is required). All of them will be on Sunday 1st September, 2019 from 10am to 14pm (lunch provided) at the Higher Polytechnic School of Ávila.

To register for the tutorials, please don´t forget to mark your tutorial preference in the CIPA Registration Form. Tutorials are not included in the symposium registration (50 euros per tutorial).

Here the 6 exciting tutorials that CIPA 2019 has organized on documenting the past for a better future:

  • Underwater photogrammetry applied to Cultural Heritage
  • Structural analysis of historical construction by means of the Finite Element Method
  • Arches: an open-source web-based platform for the inventory and management of heritage
  • PetroBIM: a new tool for the restoration, conservation and management of cultural heritage
  • Human-centered virtual, augmented and mixed reality
  • Photography for 3D modelling of cultural heritage

 


TOPIC 1

Underwater photogrammetry applied to Cultural Heritage

Presenters: Dimitrios Skarlatos (Cyprus University of Technology, Cyprus) and Panagiotis Agrafiotis (Cyprus University of Technology, Cyprus – National Technical University of Athens, Greece)

Contents: Recording and documenting underwater cultural heritage is an obligation of mankind and dictated by international treaties like the Convention on the Protection of the Underwater Cultural Heritage that fosters and encourages the use of “non-destructive techniques and survey methods in preference over the recovery of objects”. Underwater Cultural Heritage sites are widely spread into the oceans and especially the Mediterranean. Unlike land sites, however, submerged settlements, ancient ports, coastal industrial installations, and especially shipwrecks, are not accessible to all experts, due to their environment and depth. There, in order to create high detailed textured 3D models, data resulting from optical sensors, processed with photogrammetric techniques seems to be the only solution.

This tutorial will explain the main difficulties caused by the underwater environments in the photogrammetric approach and how experts deal with those. Topics to be discussed include:

  • Underwater cameras calibration
  • The gap between in-water and through-water photogrammetry
  • Control points network setup, measurement and adjustment
  • Equipment and Image acquisition
  • Underwater image colour enhancement
  • SfM-MVS processing

Following the theoretical part, participants will deal with a real case scenario in the practical session where real underwater data will be processed.

                      

 

                                                  

Target audience: PhD students, researchers and practitioners with technical or archaeological background

Level: beginner to intermediate


 

TOPIC 2

Structural analysis of historical construction by means of the Finite Element Method

Presenters: Luis Javier Sánchez Aparicio (University of Salamanca, Spain) and Borja Conde Carnero (University of Vigo, Spain)

Description: among the wide variety of method that can be used nowadays to evaluate the structural response of historical constructions (from limit analysis approaches to the discrete element method) the finite element method has been placed as one of the most practical and robust tools. The tutorial will explain the basic concepts related with the creation of numerical models by means of the finite element method, including the generation of numerical meshes, the selection of constitutive models, modelization strategies and applications (static and seismic analysis). To complement these concepts, the tutorial will include a practical session on which the participants will generate and evaluate different study cases.

Target audience: PhD students, researchers and practitioners

Level: beginner to intermediate


 

TOPIC 3

Arches: an open-source web-based platform for the inventory and management of heritage

Presenters: David Mayers (Getty Institute)

Description: Arches is a web-based, geospatial information system for cultural heritage inventory and management. The platform is purpose-built for the international cultural heritage field, and it is designed to record all types of immovable heritage, including archaeological sites, buildings and other historic structures, landscapes, and heritage ensembles or districts.

This tutorial will provide an overview of Version 4.0 of the Arches heritage inventory and management platform, including the new Version 4 features with a focus on customizing the software to meet your organization’s or project’s needs.

Topics covered will include:

  • An overview of the management of heritage data in Arches, including international data standards, graphs, controlled vocabularies, and integration with external web services
  • System design and capabilities, including system architecture, creating and managing data, searching and reporting functionality, and geospatial layers
  • Arches deployment, including the new installation wizard, the new application configuration manager, the new user-profile and permissions manager, and customization of the platform through the new integrated graph manager
  • Features coming soon,including the new mobile data collection app for smartphone and tablet field data collection with or without network connectivity, and data contributions including crowdsourcing with the new data-collection project manager tool
  • The Arches community, including how to participate
  • How Arches is being implementedby a range of heritage organizations and projects.

Presented by Alison Dalgity and David Myers (Getty Conservation Institute), and Adam Cox (Legion GIS)Target audience: PhD students, researchers and practitioners

Level: beginner to intermediate


 

TOPIC 4

PetroBIM: a new tool for the restoration, conservation and management of cultural heritage

Presenters: Alberto Armisén Fernández (PetroBIM)

Description: Modern restoration principles in Cultural Heritage demands an extensive knowledge of the asset at different levels. This makes necessary the intervention of architects, historians or restorers among others. This multidisciplinary framework demands the use of an interdisciplinary tool able to manage different sources of data (monitoring data, stratigraphic analysis or physical tests among others), design restoration plans or consult data for the preventive conservation.

Under this complex scenario this tutorial will show the tool PetroBIM based on the Building Information Modeling approach for the management of cultural heritage through internet. This tool includes:

  • A 3D viewer able to include attributes to geometrical elements, create virtual sections, update information or filtering graphical and numerical information
  • Libraries that allow to store in an ordered way all type of information that is accessible to every user: projects, reports, pictures, drawings, etc.
  • Working modules: by default, PetroBIM includes modules of constructive elements, building materials, alterations, construction phases, humidity, intervention works, maintenance, archaeology and deformation. However, the functionalities of PetroBIM could be extended with custom modules.

All the advantages offered by PetroBIM will be shown through a practical application during this tutorial.

Target audience: PhD students, researchers and practitioners

Level: beginner to intermediate


 

TOPIC 5

Human-centered virtual, augmented and mixed reality

PresentersArzu Çöltekin (University of Zurich and Uni. Appl. Sci. & Arts Northwestern Switzerland)

Description: A very important, yet somewhat neglected component in the successful VR/AR systems is the human. In this half-day tutorial, we will revisit the fundamental concepts in perception, cognition and vision that are relevant to designing functional, desirable and memorable experiences when using VR and AR systems in the context of cultural heritage. The tutorial will explain the key terms and feature examples of human-centered design with the VR/AR based on empirical experiments including eye tracking. This is followed by a lecture on how to evaluate the usability of these systems and user experience with them, and a participatory exercise.

Within the scope described above, the topics that the tutorial will include:

  • Established links between spatial cognition, perception, vision and AR/VR systems.
  • Evidence-based design principles
    • What makes a visualization usable, memorable and desirable?
    • Barriers to technology adaptation (psychophysical and social factors)
  • Evaluating the prototypes: Moving away from the naïve assumptions
  • Future research directions at the crossroads of technology, design and human factors

After you attend this tutorial, you will have a better understanding of your users and take away some design lessons. Ideally, the tutorial will guide you towards creating better VR/AR experiences than before.

 

Immersive analytics: Eye movements of a participant is recorded as they explore a 3D city.

Target audience: PhD students, researchers and practitioners

Level: beginner to intermediate


 

TOPIC 6

Photography for 3D modelling of cultural heritage

Presenter:  Geert Verhoeven

Description: Until a few years ago, acquiring 3D surface geometry using images (a process called image-based modelling) was a task that only photogrammetric experts could fulfil. However, this situation has dramatically changed in the past decade due to the proliferation of powerful computer vision algorithms (such as structure from motion) that became embedded in easy-to-use photogrammetric software. However, this accessibility of image-based modelling and the seemingly limited knowledge that is currently necessary to create an image-based 3D surface model often turn out to be problematic when these digital surfaces should truthfully represent real-world objects and scenes.

Whether it is to research paintings, monitor building degradation or survey landscapes, the accuracy and fitness-for-purpose of the image-based 3D models are primarily dependent on the input imagery. Therefore, this workshop wants to clarify essential photographic notions and delve a bit deeper into photo acquisition strategies for image-based modelling. Participants will:

  • get familiar with important terminology and concepts of photography such as exposure, focal length versus principal distance, depth of field, diffraction, mirror lock-up and white balance;
  • learn to plan their photographic image acquisition so that the resulting 3D surface models and orthophotographs are suitable for the purpose they should serve (e.g. a 3D model in which details as small as 0.1 mm can be seen or an orthophoto with a 1:20 scale). More specifically, the interplay between focal length, object distance, detector pitch and ground-sampling distance will be explored and linked to the concepts of image overlap, depth of field and baseline;
  • acquire photographs as to master all these concepts theoretically and practically;
  • receive all the teaching material (i.e. the PowerPoint presentation, image acquisition checklist and an Excel spreadsheet).

Target audience: everybody that wants to start with image-based modelling or just deepen their knowledge on the image acquisition part.

Level: beginner to intermediate.