Featured Research

from universities, journals, and other organizations

Computer Hunt For Rock Carvings

Date:
September 25, 2006
Source:
SINTEF (Foundation For Scientific And Industrial Research At The Norwegian Institute Of Technology)
Summary:
A new imaging technique is helping archaeologists to find, interpret and conserve rock carvings in digital format. The technology that archaeologists and ICT researchers have recently adopted is called "structured light". It is a method that quickly and easily reads off the three-dimensional shape of an object with the aid of a camera and a video projector.

A new imaging technique is helping archaeologists to find, interpret and conserve rock carvings in digital format.

The technology that archaeologists and ICT researchers have recently adopted is called "structured light". It is a method that quickly and easily reads off the three-dimensional shape of an object with the aid of a camera and a video projector. The images are transferred to a computer, which constructs a detailed three-dimensional model of the object. The method is normally used in reverse engineering, the process of making a 3D computer model of an existing physical object. It has also been used for product quality control, for example in the engineering industry.

Kalle Sognnes, a professor of archaeology at NTNU, is extremely pleased with the help he has received from SINTEF research scientist Ψystein 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.

More revealing

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.


Story Source:

The above story is based on materials provided by SINTEF (Foundation For Scientific And Industrial Research At The Norwegian Institute Of Technology). Note: Materials may be edited for content and length.


Cite This Page:

SINTEF (Foundation For Scientific And Industrial Research At The Norwegian Institute Of Technology). "Computer Hunt For Rock Carvings." ScienceDaily. ScienceDaily, 25 September 2006. <www.sciencedaily.com/releases/2006/09/060925084617.htm>.
SINTEF (Foundation For Scientific And Industrial Research At The Norwegian Institute Of Technology). (2006, September 25). Computer Hunt For Rock Carvings. ScienceDaily. Retrieved July 28, 2014 from www.sciencedaily.com/releases/2006/09/060925084617.htm
SINTEF (Foundation For Scientific And Industrial Research At The Norwegian Institute Of Technology). "Computer Hunt For Rock Carvings." ScienceDaily. www.sciencedaily.com/releases/2006/09/060925084617.htm (accessed July 28, 2014).

Share This




More Computers & Math News

Monday, July 28, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Google's Next Frontier: The Human Body

Google's Next Frontier: The Human Body

Newsy (July 27, 2014) — Google is collecting genetic and molecular information to paint a picture of the perfectly healthy human. Video provided by Newsy
Powered by NewsLook.com
Congress OKs Unlocking Phones From Carriers

Congress OKs Unlocking Phones From Carriers

Newsy (July 26, 2014) — A bill legalizing "unlocking," or untethering a phone from its default wireless carrier, has passed Congress and is expected to be signed into law. Video provided by Newsy
Powered by NewsLook.com
Apple Acquires 'Pandora of Books' Service BookLamp

Apple Acquires 'Pandora of Books' Service BookLamp

Newsy (July 26, 2014) — Apple reportedly acquired analytics and recommendation engine BookLamp for between $10 and $15 million. Video provided by Newsy
Powered by NewsLook.com
Wikipedia Puts Congress in Time Out, Blocks Editing

Wikipedia Puts Congress in Time Out, Blocks Editing

Newsy (July 26, 2014) — An IP address within the House of Representatives was banned from editing Wikipedia articles for 10 days after it made some questionable changes. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins