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Digital Archaeology Workshop 2019 – registration open!

Always wanted to learn digital archaeology skills but never got to? This is your chance! Did I hear GIS? Check! 3D modelling in Blender? Check! Programming in R? Check! Photoscanning? Check!

At the 5th of April we’ll be taking part in the DAWN 2019. The workshop is a yearly recurring event organized by the DAG and CAA Netherlands Flanders. This year it is hosted by the University of Amsterdam and ACASA.

Aimed at beginner level.

Sign up NOW!

Co-hosted and organized by the 4D Research Lab.

Augmented Reality in Humanities Education

Last month the coordinator of the 4DRL, Jitte Waagen, was awarded with a grant from the University of Amsterdam for the development of Augmented Reality in education. As far as we know, this is within humanities at the UvA the first attempt to use this technology in academic teaching programs. That means this project is still very explorative in nature: what works, and what doesn’t? We improve by free experimentation, but also by clearly defining aims and setting out a vision for the future. So I asked Jitte to write down his ideas regarding the specific aims of the current project and in general about the future potential of AR in education.

How did the idea for this project rise with you?

Jitte with an AR experiment from earlier this year: a roman villa projected on a textured panel.

In ACASA, we do city walks with students to introduce them to the archaeology/history of Amsterdam, as well as introduce them to the world of online spatial data; the Through the Looking Glass (TtLG) project. Students are provided with a tablet with old maps and archaeological data that shows them where they are in relation to historical sources. This has so far been based on digital two-dimensional maps; we always wanted to do this in 3D, projecting historical data on the screen of a tablet as 3D reconstructions visible in the Amsterdam streetview. You could show so much more information, i.e. how would the 1481 city walls look projected on the current skyline of Amsterdam. In addition to our own curiosity, in evaluations of the TtLG project students often mentioned they would like to see buildings and objects in 3D during the walk. So it was basically an idea that was waiting for a project. The project in collaboration with the APM flowed naturally from this as well, since the museum is also used for teaching purposes at ACASA.

Continue reading “Augmented Reality in Humanities Education”

Grant for exploring augmented reality in education

Augment of Kalverstraat 60/62, the former house and workshop of 16th century painter Jacob Cornelisz.

4D Research Lab coordinator Jitte Waagen received a ‘Blended Learning’ grant for exploring the use of augmented reality in education. Blended Learning is the University of Amsterdam’s program to stimulate the development of new forms of education. There are two projects planned. Augmenting Artefacts will explore the use of interactive augments of artefacts in the Allard Pierson archaeological museum. Students learn to collect data and enrich museum artefacts with contextual information, displayed in an augment. In the Blending Past & Present project students are challenged to visualise the past city of Amsterdam, making 3D reconstruction of buildings and view them in context of the current urban setting. The 4D Research Lab is closely involved with these projects, supporting the students with advise on methodology and technology and creating examples of use-cases.


Read more on the website of ACASA (Dutch)

The tower that never was… until now

In spring this year, celebrating the launch of the lab, we had a call for small research projects making use of our services. Of course we chose one winner, but these projects were all so interesting that we decided to award all a small pilot study of their project. One of these was Gabri van Tussenbroeks project on the ‘Nieuwe Kerktoren’, the tower of the New Church at the Dam in Amsterdam.

I hear you wondering, “what tower?”, and that is exactly the issue at stake. That tower was never build. This is a fascinating history and Gabri van Tussenbroek dedicated his most recent book, “The toren van de Gouden eeuw”, to the complex of political, social and financial reasons for this stalled construction project. It was very well received, and shortlisted for the Libris Geschiedenis Price 2018. (video)

In the 17th century commentators worried that this 116 m high tower might overshadow the recently constructed new world wonder, the Amsterdam City Hall. It begs the question, what would the urban impact have been on the city centre of Amsterdam if this tower was build after all? With this question Gabri van Tussenbroek came to us.

The project had progressed enough so that they already had started building the base of the tower (still visible today), so the design was completely finished. In fact, a scale model of the tower still survives in the Amsterdam Museum. A 3D model had already been made using a photo modelling technique. So our plan was to visualise this 3D model in the current urban scene of Amsterdam.

The view positions.

Ideally I would put the 3D model of the tower in a accurate 3D model of the city of Amsterdam, and render out the views. But constructing this model would take us far beyond the scope of this small sized project. So instead Gabri chose four viewpoints from which he wanted to look at the tower to gauge its visual impact. I prepared these viewpoints in a georeferenced map of Amsterdam loaded in 3D a modelling program, where I had also imported the scaled scale model of the tower. I decided position and angle of the camera, and the lens type in the 3D modelling software, and then went to the actual locations in the city centre to take matching photographs. I imported these back into the 3D modelling program, fine tuned the virtual camera positions and rotation, and rendered the tower from exactly these viewpoints. Also the sun position was chosen to match the date and time of the day on the photos. Finally, as the virtual and real world cameras were an exact match, the photos were simply overlain with the renders of the tower in a graphics program.

Note that not much has been changed to the colour of the tower as the ‘textures’ of the 3D photoscan were used and simply tweaked to blend in with the stone materials of the Nieuwe Kerk and Paleis op de Dam. So a next step would be to make a more realistic material for the tower so the result would be even more convincing.

To return to the question of urban impact, it is partly a question of taste. Visual impact is very hard to separate from aesthetic judgement. I expect that many modern observer would not have minded a 116 meter high tower on this location. In my view it complements the urban vista quite well, and if this alternative history would have unfolded, I could completely see the New Tower to have become one of the cherished prides of the Amsterdammers.

Tijm

Standing on the Nieuwezijds Voorburgwal looking north.
Standing in front of the Westerkerk across the bridge looking east.
Standing in front of Central Station looking south. The spire is just visible behind the small corner tower of the Victoria Hotel.