Photogrammetric Modeling + GIS Spring 2012 Edition Better methods for working with mesh data By Rachel Opitz, University of Arkansas, and Jessica Nowlin, Brown University The method of bringing photogrammetric data into a GIS to create simple visualizations described in this article is being used in ongoing University of Michigan excavations at Gabii, Italy. This article as a PDF. The authors describe how to bring photogrammetrically derived meshes into a GIS so that the 3D relationships between features can be easily understood, descriptive data can be integrated, and spatial analysis tools in GIS can support analysis and interpretation after the field project has ended. Photogrammetric Survey in Archaeology Close-range photogrammetric survey is increasingly popular as a recording method in archaeology. This technique is commonly used to document features with complex geometries or large numbers of inclusions, including walls, pavements, rubble collapse, and architectural elements. The Basic Process The Initial Mesh
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