The course is open to students of architecture as well as to those of surveying and mapping (geodesy). It deals with the basics of photogrammetry and laserscanning and its application in the field of archaeology and historical building survey. Photogrammetry permits a fullscale representation of 2- or 3-dimensional objects (e.g. buildings, facades) by means of photography. Laserscanning is a relatively new technology, which uses a so called 3D-laserscanner for measuring 3-dimensional objects. By means of a laser beam, the instrument senses a building in high-end resolution and produces a 3D-modell, the so called point cloud.
The lecture part of the course in a first step deals with the basics of photogrammetry and 3d-laserscanning and gives hints to the approach of creating planning material like the digital equalisation, orthophoto, and 3D-photomodel. In a second step, different methods of stratigrafic analysis (stonework analysis, cartography of damages) will be introduced. These methods utilise the graphic material obtained.
The practice part of the course contains a laser-scanning based building survey at the Wiener Hofburg and the postprocessing back at the institute to finally translate the 3d-data into 2d-plans. Students that also attend 251.095 UE Bauaufnahme I will carry out a complete historical analysis of their part of the roof structure.
Lecture notes for this course are available. Wolfgang Böhler - Andreas Marbs: Vergleich von 3D-Scanning und Photogrammetrie zur geometrischen Dokumentation im Denkmalbereich, Aachen 2004 Alexandra Riedel - Katja Heine - Frank Henze: Von Handaufmaß bis Hightech II , Begleitband zum internationalen Kolloquiums 23.-26.2.2005 in Cottbus, Philipp von Zabern 2006 Ulrich Grossmann: Einführung in die historische Bauforschung, Darmstadt 1993 Gerda Wangerin: Bauaufnahme - Grundlagen, Methoden, Darstellung, Wiesbaden 1992 Johannes Cramer: Handbuch der Bauaufnahme - Aufmaß und Befund, Stuttgart 1984
