title: A 3-dimensional digitizer using spherical co-ordinates.
authors.forename: D
authors.initials: D
authors.lastname: Thomas
mesh_terms: D000703:Analog-Digital Conversion; D004867:Equipment Design; D007091:Image Processing, Computer-Assisted / Q000295:instrumentation*; D008433:Mathematics; D003765:Models, Dental; D012984:Software