3D LASER SCAN OF ANCIENT TEMPLE - A CASE STUDY

Heritage is our pride. Preserving cultural heritage sites have been a great challenge across the globe. Laser scanning technology is the best and efficient approach to survey historical monuments. Tech27 Systems was tasked with the 3D documentation of a 2000 year old temple, which is one of the 108 great Siva temples in the world. The temple is housed in a compound wall with an extent of 3¼ acres of land in a square shape, with a 50 feet high flag mast, rounded walls with murals and sculptures. Due to its historic importance and age, the structure was fragile, intricate and required a very careful surveying approach. Due to long term exposure to the environment, the murals and artwork had developed hairline cracks and high moisture content. No direct contact was allowed, but the surveying output required millimeter accuracy.

Tech27 provided a turnkey solution that included laser survey, data processing, 3D modelling and 2D detail drawings as per the client’s requirement. A long range laser Scanner with a range of up to 120 meters and a 360° x 305° field of view was used. A scanning rate of 976,000 points per second and accuracy up to +/-2mm was achieved. The shape, position and spatial locations of objects are recorded by millions of points, each with a latitude, longitude and elevation coordinate. After a few days, 36 colour scans were obtained to produce a detailed, 3D data set of the entire temple. Inaccessible and dark areas posed no complications, due to the scanners self-illuminating infrared laser and remote flash control. The scanner’s compact design allowed them to work among the pillars of the temple, and the tripod ensured setup times were quick and easy. Once the scans had been aligned and cleaned, multiple software programs were used to create interactive models. Every level of detail is now viewable, from different sculpture works and even inscriptions on the inner roof pillars 360°

• Produced detailed 3D models and walkthroughs of the monument.
• Inaccessible areas with poor lighting were surveyed and documented.
• Sculptures, murals, and intricate structures were scanned to a high accuracy.
• Structural deformations were highlighted.
• Large datasets were optimised and made easily accessible.
• 2D drawings of elevations, plans and sections were created.
• Availability of as-build data decreased the number of site visits and costs.
• Improved conservation and intervention activities.

For more information, Email : info@tech27.com or Call : +44(0) 7900430255

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