“A Point Cloud Pedagogy” is the exploration of providing students with new insight into Historic Preservation using point cloud technology as the vehicle. How do you document a historic site, an object, a building, interiors, topography, or machines for that matter, at a high level of accuracy giving us a permanent snapshot in time?
Photogrammetry and 3D Laser Scanning methods of documentation are not necessarily new. Improvements in technology has made this far more accessible to students. How to grasp, process and draw conclusions using Photogrammetry and 3D Laser Scanning tools by the students will allow them to discover what it takes to document a historic site. They will also learn how to make key decisions within the workflow to insure they’re capturing the full story of that site.
The story of a historic site can best be told at varying scales and levels of detail within the point cloud itself. This offers the opportunity to analyze each part of the site, and visualize the 3D model through point cloud, wireframe, shaded and rendered views. 3D laser scans and photogrammetry allow the user to develop a free-standing model of underground interior spaces, which would otherwise not be seen.
This can provide a whole new insight on a historic site, provide clues as to what might be missing, and what might need to be further investigated. In the last decade, point cloud datasets, created using various technologies, have revolutionized the way we document in three dimensions. An added benefit of this process happens to be a bi-product of the technology itself - extraordinary images that would have previously been impossible to create.
Understanding the blend of sciences, art, and precision of measurement provides new perspectives forcing us to wonder what we’re viewing. What is the story behind this image? How will the student approach this?
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