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Currently viewing the tag: "2012-11"

Applications of Digital Photogrammetric Methods for Preservation Documentation of Historic Homes. (2012-11)

On January 9, 2013 By Kris Vidos

Georgia O'Keeffe staff documenting an exterior adobe wall at O'Keeffe's home in Abiquiu using stereoscopic photogrammetry.

Traditionally, conservators have relied on 2-dimensional (2D) photography to document and monitor conditions in heritage sites and objects. When a shocking, visual indicator appeared (e.g., a sudden crack in a surface), conservators took notice of what were actually thousands of slow, incremental changes (e.g., tiny fissures and failures in slowly aging materials). Conservators then photographed the area to monitor how deterioration was advancing. Two factors limit our ability to detect and monitor deterioration: our ability detect slow and small “micro” changes, and our ability to compare what humans see using 3D stereo vision to what we recorded in 2D photographs.

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Last Updated: January 9, 2013.
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