In 2009 I met a technology called SfM, or Structure-from-Motion, where with a series of photographs and a kind of reverse engineering using the camera data, we could reconstruct the objects photographed in a cloud of points in three dimensions. After many studies realized, I saw it was not a trivial task to get good results, but I did not give up until I found a very interesting material in the ATOR's blog.
In ATOR's site I accessed excellent materials that enabled me to learn how the PPT-GUI work and achieve amazing results for me, at least at that time. Not so long ago, it was in May 2012.
As usual, I sent an email of thanks to the staff of ATOR and I took the opportunity to congratulate them for the excellent service presented in the posts. I told him that I was interested by their awesome field of archeology and was available if they needed anything related to 3D.
The answer came quickly and was very positive. The staff of Arc-Team research group and archaeological work, maintainers blog ACTOR, congratulated me for the work I developed with free software and invited me to write on the site, which I readily accepted. Moreover, they asked me if I was interested in participating in a project developed by them doing the reconstruction of a castle called Caldonazzo, where they work in their ruins. Second proposal also readily accepts. In that moment was born a partnership that lasts a year and a half and has yielded good fruits.
Caldonazzo is a tourist village located in Trentino, northern Italy. Famous for its lakes and mountains, houses a set of ruins of what has been a great castle, built between the twelfth and thirteenth centuries.
Since 2006 these ruins are the object of study under the responsibility of the Archaeological Superintendence of Trento, represented by Dr. Nicoletta Pisu.
The Arc-Team, a group to which I was built, aims to make the archaeological survey, organization of historical documents and was also tasked to scan the space in three dimensions, as well as rebuild it digitally. It is precisely this last part that comes into my work.
From Italy the staff of Arc-Team sent me via Dropbox all the data that were collected. Scans made from photographs, notes on the works, the basic floor plans, facades, etc.
Texturing was already set, together with the vegetation. When we work with architectural modeling, people expect the fastest possible visual results. Thus, the coloring and mapping of the scene, offer a preview of how it looks, keeping everyone motivated.
Unlike a modern architectural modeling for internal purposes, such work is done with reference of documentary evidence. The artist does not do what he wants, or even what is more pleasing to the eye. He follows comments from archaeologists, who in their turn were guided by documents, pictures and the excavation of the site.
The work is still in its start phase. Because it is a natural hill with irregularity it was a challenge to match the real scene with virtual scene.
At the beginning of the post was shown the results of previous studies of tracking. There is still much work ahead, but slowly we can get a good idea of how it was the palace Caldonazzo in its heyday and all done with free and open software.
I hope you enjoyed.
I leave here my thanks to Arc-Team for the opportunity to work with them in this fantastic project. I hope its the first of many. Grazie tante amici!
Torre dei Sicconi: progetto di ricostruzione e valorizzazione di un antico sito castellare trentino (here in ResearchGate; here in Academia)