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3D-Survey of the Bavaria (Munich)


  • Free State of Bavaria

Project Content

In 1850, the monumental statue of the Bavaria, accompanied by a lion, was revealed in a pompous ceremony. About 18m in height, it is the largest cast bronze statue o fthe modern age. More than 150 years later, comprehensive rehabilitation became necessary. For the first time, the Bavaria could be examined close up from a scaffold again. In order to seize this unique opportunity for scientists, restorers and the interested public, the Free State of Bavaria commissioned a photorealistic 3D-survey.

The engineering offices specialised on 3D-surveys ArcTron and Dr. König, along with the 3D-software developer Polymetric, designed a data recording and evaluation concept. It ranged from a basic 3D-survey, over the construction of an information system to the multimedia data presentation. The elaborate work on this complicated and groundbreaking project were successfully concluded in late 2004.

In a first step, using the latest survey technology (3D-laser and structured light scanners) a highly precise model of the bronze statue was recorded with an accuracy in millimetre range. In a second elaborate step - which can be described as pioneer work because of the 12 billion 3D-survey points -, the 3D-model of the statue was computet with high power computers in Regensburg and Potsdam.

The software, developed by the Fraunhofer Institute for Graphic Data Processing (IGD) in Darmstadt, had to be able to create a very accurate and optimised 3D-mesh with photorealistic texturing. Divided up into the single cast segments and several levels of detail, the Bavaria can now be studies in full detail on the computer.

With the building of scaled 3D-models through rapid-prototyping, new possibilities for exhibitions, museums and marketing arise.

In the end, hundreds of single examinations and damage mapping for the ongoing rehabilitation process could be managed in a specially developed 3D-information system by ArcTron. The whole project was conditioned for a multimedia DVD-presentation and will be published along with the monographical publication of the project.

Project Pictures

Bavaria head detail
Bavaria full view
Bavaria damage mapping
Work picture of documentation phase
Work picture of documentation phase