AARG Venice (September 12-14, 2018)

Talk:Topographic Drone-Photogrammetry to improve analysis of GPR studies at heritage sites

  • Till F. Sonnemann

GPR surveys can provide high resolution 3-dimensional information about the subsurface of archaeological sites, or the interior of heritage structures. For areas with height differences, the analysis can sometimes be significantly improved by incorporating topographic information into the professional GPR software.
Recording high resolution imagery of a survey area using drones, and the processing of the photos to create surface models using Structure from Motion (SfM), has shortened the process and enhanced the results significantly. Interpolated surface models produce a high end DEM for analysis and visualization. The paper addresses different sample cases from recently conducted GPR surveys and their improvements made by incorporating topography from drones.

Poster:Whodunit - On the confusion of the first active use of aerial photography at an excavation sites

  • Till F. Sonnemann

When searching for ‘the first’ use of aerial archaeology for a lecture, the author came across a number of papers who independently describe this event to have happened in Persepolis in 1879 when the inventor of the gas turbine used an air balloon to record an excavation. When searching for and eventually finding the quoted publication, there was however no aerial image or mentioning of this task. The poster will present a whodunit detective story on when academia goes off the rail, showing the lapses that can happen when copying from secondary sources, and leaving the question, once a myth like this is set, (how) can it be stopped? To give you already the answer to who was first: most sources agree it was Gicaomo Boni, while directing the excavations of the Forum Romanum in 1889/90. There is at least photographic evidence of an air balloon on site as well as of the recorded images.