Kalle Sognnes, a professor of archaeology at NTNU, is extremely pleased with the help he has received from SINTEF research scientist Øystein Skotheim, and he believes that the new method will arouse the interest of archaeologists elsewhere, not least because the imaging technique helps researchers to see more than the human eye can manage alone. This will make it easier to reveal scratches that otherwise would have been difficult to see . The method also allows more details of such scratchings.
Need for modernisation
The background for the trials of the new system is that NTNU’s archaeologists needed better, more modern methods of documenting and characterising rock carvings. They therefore contacted SINTEF’s Dept. of Optical Measurement Systems and Data Analysis, which suggested trying out imaging with structured light. After a few preliminary experiments at the Museum of Natural History and Archaeology in Trondheim, the researchers are extremely pleased with the system.
The method makes it possible to retain the three-dimensional characteristics of rock carving for the future, using relatively inexpensive existing equipment. A problem is that rock carvings break down and are weakened in the course of time. Another important advantage is that the equipment is easy to transport and to rig up and dismantle.
“We know that other archaeology groups have tried to do the same thing with less advanced laser equipment, such equipment is time-consuming to use, and it is not easy to bring it out into the field,” says Sognnes.
In many rock carving fields, scratches have been made at several levels on the same spot, which means that a rock carving may hide another older one lying below it. Going “into depth” with the computer model makes it possible to identify, for example, whether the carvings have been made using different types of tool or with different techniques, and thus during different epochs.
Skotheim adds that this method of imaging and processing data from ancient monuments will make it possible to produce virtual exhibitions on the Internet, or to feed data directly into a milling machine to produce exact full-scale copies of the originals. This could bring antiquities within the reach of many more people than hitherto.
Aase Dragland | alfa
Ultra-precise chip-scale sensor detects unprecedentedly small changes at the nanoscale
18.01.2017 | The Hebrew University of Jerusalem
Data analysis optimizes cyber-physical systems in telecommunications and building automation
18.01.2017 | Fraunhofer-Institut für Algorithmen und Wissenschaftliches Rechnen SCAI
Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...
Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.
While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...
Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales
Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...
Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.
As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...
At TU Wien, an alternative for resource intensive formwork for the construction of concrete domes was developed. It is now used in a test dome for the Austrian Federal Railways Infrastructure (ÖBB Infrastruktur).
Concrete shells are efficient structures, but not very resource efficient. The formwork for the construction of concrete domes alone requires a high amount of...
10.01.2017 | Event News
09.01.2017 | Event News
05.01.2017 | Event News
18.01.2017 | Power and Electrical Engineering
18.01.2017 | Materials Sciences
18.01.2017 | Life Sciences