Last week we wrote about Pix4D’s successful attempt at creating the first high resolution, 3D model of the Christ the Redeemer statue in Rio de Janerio, said to be Brazil’s most important monument.
It’s a seemingly impossible project, but they did it. This week, we caught up with one of the project teammates, Sonja Betschart who also happens to be Pix4D’s Chief Marketing Officer.
Drone Girl: How did you get involved in the Rio project?
Sonja Betschart: I got contacted in early 2014 by a professor, Celso Santos, of the 3D lab of PUC University in Rio through DroneAdventures. The lab had been looking into how to get an accurate 3D model of the statue for over 15 years, including using laser scanners to do so. The project was just never feasible when it came to getting both results for the whole statue and affordable technology. When the professor saw one of our projects (mapping the Matterhorn in Switzerland with drones and Pix4D software), he hoped that this new technology would allow him to finally transform his dream into reality.
DG: What was the most challenging part in planning the project?
SB: The huge amount of data acquisition, which needed to be done in a very specific way with special hardware. Although DroneAdventures would have loved to do the project, they lacked the hardware and believed that Pix4D might be a better fit because of its specialization in this kind of data acquisition. We knew that we were in for an “all-around challenge” when it took us over 9 months just to get the approval to fly a drone on the heritage site, which belongs to the Archdiocese of Rio de Janeiro.
DG: Why did it take 9 months to get approval?
SB: Flying drones is always tied with local legislation. To fly a drone in Brazil, one needs approval from the local government. The local government would only give us the necessary permission to fly our drone if the Archdiocese of Rio de Janeiro, to whom the site of the Christ the Redeemer statue belongs, also gave us permission from their side.
DG: What was it like once you were actually on site?
SB: Amazing and very emotional! When you plan such a unique project for over 9 months and are in contact with the local partners without knowing them in person, it was a very emotional day when we finally met in person and came all together at the base of the Christ statue, to do our “onsite reconnaissance” on the first day. We were all overly excited, but also felt that this was only the beginning of our adventure. We had planned out the whole mission in detail over the previous months and being on site confirmed once more that you can plan all you want, in the end, plans will change and possibly many things will not go according to plan.
DG: And how was the wind up there?