Powerful high-definition scanning documentation to support resoration and maintenance.

Why high-definition scanning? Our national, state, and local historical buildings, statues, and monuments need to be maintained and often restored. Most are very unique architecturally. Therefore, 360 degree imagery and 3D documentation of existing conditions is required before restoration so that there is a permanent record of the building or artifact.

When PrecisionPoint works on historical preservation projects, we provide a number of useful digital survey deliverables, including:

  • 3D point cloud that will serve as an archivable, digital survey record of an existing structure.
  • 2D Floor plans, exterior elevations, and sections produced from the point cloud.
  • Building information models of historic facilities.

The bottom line is that the 3D point cloud generated by PrecisionPoint can be used to provide a wide variety of documentation to support the restoration and maintenance of historic structures.

Historical Preservation Client Snapshot

Client: City of Indianapolis

Project: Restoration of Lady Victory atop of the Soldiers & Sailors Monument in Circle Center

Problem: In 2011, it was discovered that the 37-foot tall Lady Victory bronze statue had significant deterioration of critical elements. Lady Victory stands on a globe, holds a torch in one hand, and a sword in the other—and there was a very realistic possibility that these components would separate. Before Lady Victory could be restored, she had to be safely hoisted down off the monument. In order to do that, the statue’s geometry needed to be measured because it is a unique and organic work of art.

Solution: PrecisionPoint offered to conduct a 360-degree reality capture laser scan of Lady Victory, and provided a 3D PCM as the main deliverable on the project. She was too far away to be scanned from the ground, so we first enshrined the statue with five tiers of scaffolding that started from the base to the top of her head. Once PPI finished the scanning process, measurements could be extracted from the point cloud, which allowed the city to bring in a special crane to remove her in one solid piece.

The structural part of the renovation included redesigning the interior reinforcements that would preserve Lady Victory for another 100 years. PPI helped the sculptor and structural engineer to use the point cloud to create digital slices through the statue to determine her internal geometry and clearances. The structural engineer used Autodesk® Revit® to analyze the point cloud and take measurements to build a new reinforcing structure that would securely hold the statue together. The confidence in the PCM delivered by PrecisionPoint was also a contributing factor in the decision to reassemble Lady Victory on the ground before raising her, which made the process of remounting the statue to the monument safer and easier.

Learn More About PrecisionPoint's Reality Capture Solutions