Precise measurement and 3D modelling for industrial applications

Abstract

Many industrial applications require precise dimensional measurement and three dimensional (3D) models. The industrial measurement systems could be divided into geodetic (e.g. V-STARS and AXYZ systems) and non-geodetic (e.g. CMM system) methods. The V-STARS system is an enhanced (and portable) digital close range photogrammetric system for precise 3D coordinate measurement using special high-resolution digital cameras intelligent camera (INCA), special target (high contras retro-reflective)and special software, for the automation of the entire measurement process. The typically accuracy of V-STARS is better than 10 ppm, i.e. about 0.010mm on a 1.0m object. This research concentrates on the precise dimensional measurement (using V-STARS with single camera) and 3D modeling (using Rhinoceros 2.0 software) of several test objects. By adopting simple measurement procedure, the accuracy of sub-mm was easily achievable. The results from V-STARS were also verified with AXYZ and CMM.