Our goal is to create realistic 3D images of objects or rooms. For this purpose, we use the laser scanner Faro Focus S70, which can capture anything visible in a sphere with a radius of up to 70 meters. Whenever we scan a room, we also move along the walls and take overlapping photographs. Overall, depending on the size of the room or object, we collect between 600 and 1500 pictures to ensure that we obtain enough material in a single scanning process.
The photogrammetry software RealityCapture can now determine the position of each camera and allocates each photograph to its correct position. That way, we can create a polygon mesh, on which the pictures are placed in their accurate locations. Next, we can generate a 3D model and move through the virtual room as if we were there. By means of the software Houdini, ZBrush and Autodesk Maya, we can do the post-processing.
As a result of the high resolution, the created model looks very realistic – even words and numbers can be read. A mere modeling with such an elevated level of detail would be hardly possible or at least require a substantial effort. Moreover, the technology offers various possibilities. It can enable us, for example, to generate a 3D model of an artist’s delicate death mask so that people can take a closer look at it. Photogrammetry may also enable us to take a virtual walk in inaccessible or even dangerous locations, such as Chernobyl, without the need to be on site.
Contact: Alexander Giesbrecht