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Reflectance Transformation Imaging and Photogrammetry training

In late 2016 and 2017, I attended workshops focused on advancements in imaging and documentation of objects and cultural heritage.  The workshops were taught by the Cultural Heritage Imaging group based out of San Francisco.  Reflectance Transformation Imaging (RTI) involves photographing an object or item with multiple light source angles.  The images are "stitched" together digitally with software that allows one to interactively re-light the object.  This allows for excellent non-invasive inestigation of the surface topography.  Photogrammetry relies on a series of images to produce a three dimensional model.  The image capture techniques of photogrammetry provide a similar if not better output as a laser scanner, but at a much lower cost.  Both imaging methods are being employed at the Fowler Museum and in the field.

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