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Optech ILRIS-3D Long-Range Scanner

 

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The Intelligent Laser Ranging Imaging System (ILRIS-3D), manufactured by Optech, Inc., is an imaging system that offers direct-to-digital 3D models of any scene. The scanner is about the size of a motorized total station, with on-board digital camera and large-format LCD viewfinder. The ILRIS-3D has a visual interface similar to that of a digital camera. The unit is portable, weighing 12 kg and can easily be used in the field by a single person. As the laser is Type 1, it can be safely used in all settings. With a 20% reflectance surface it has a range of 3m - 1 km. Accuracy in the X,Y and Z dimensions is +\- 10 mm at 100 m. Point cloud data are captured at 2000 points/second. A typical scene with adjacent point spacing can be fully scanned in 10-15 minutes, capturing 1.2 to 1.8 million points.

Detailed technical specifications for the instruments are available here. More details are provided at the Optech Web site.

 

Optech at Ostia

  Since the acquisition of this instrument by CAST, it has been used at a number of locations around the U.S. and abroad:

  • Laser scanning at Machu Picchu -  During the summer of 2005 researchers from CAST, in collaboration with the University of Pennsylvania Museum of Archaeology and Anthropology, conducted a high-density survey (HDS) of the Inca ruins of Machu Picchu and Huayna Picchu in Peru.
  • Laser scanning at Tiwanaku - In the summers of 2005 and 2006, researchers from CAST traveled to Bolivia to collect high density, three dimensional survey data at the UNESCO World Heritage site of Tiwanaku.
  • Ostia Antica 3D scanning project - In preparation for the University of Arkansas Honors Colloquium
  • Visualizing the Roman City, CAST researchers collected a large amount of geospatial data at the archaeological site of Ostia Antica, Italy.
  • Visualizing rock art sites in Northwest Arkansas - Researchers from CAST worked closely with Dr. George Sabo of the Arkansas Archaelogical Survey to create a series of 3D visualizations that document and explore several rock art sites in Northwest Arkansas.
  • The Amarna 3D scanning project - Researchers from CAST, working with the Amarna Trust and the University of Cambridge, recorded archaeological features at the short-lived capital of the Egyptian empire envisioned and constructed by the pharaoh Akhenaten during the late Eighteenth Dynasty of the New Kingdom.
  • Spiro Mounds survey - A high density 3D survey was used to create more accurate maps and models at Spiro Mounds, Oklahoma, one of the most important Mississippian sites in North America.
  • Samaipata 3D scanning project - The El Fuerte de Samaipata 3D Scanning Project seeks to document the artistic and architectural elements of this UNESCO World Heritage site located in the eastern foothills of the Bolivian Andes.