Scanalyze: a system for aligning and merging range data. Scanalyze is an interactive computer graphics application for viewing, editing, aligning, and merging range images to produce dense polygon meshes. It was the primary tool used in the Digital Michelangelo Project (1997-2004) to assemble 3D models of Michelangelo’s statues from laser range data. It was also used heavily in the Digital Forma Urbis Romae Project (1999-2006). This software distribution contains the source code for Scanalyze, as well as binaries compiled for SGIs (running IRIX) and PCs (running Linux or Windows). It is being made available for research and commercial use, free of charge, as described at the bottom of this web page.