A Beginner’s Guide to 3D imaging and dimensional metrology J-Angelo Beraldin and Adriana Bandiera
Objectives: 3D data acquisition and processing methods are presented in a dimensional metrology context for close range and medium/long range 3D surface inspection and modelling applications. • Identify the different types and technologies used for 3D imaging. • Understand the physical and practical limitations when measuring surfaces with a 3D imaging system. • Know the basic ISO and national standards available or related to 3D imaging. • Develop a strategy that includes concepts drawn from dimensional metrology when measuring and modelling an object/site. • Give attendees a sense of control for the measurement process and its practical applications in their ever changing challenges they are faced with. • Several examples will be discussed, professional quality processing software will be used and a handout of all the material presented will be available to attendees.
Content: - Introduction to non-contact 3D measurements; - Basic dimensional metrology, measurement uncertainty, temperature effects, materials, environment and laser safety; o Introduction to 3D imaging techniques: laser scanning, fringe projection systems, photogrammetry, medium-long range 3D imaging; - Standards and their applications/implications; - Verification of 3D imaging systems using artifacts; - Applications of 3D imaging and on-screen demonstration using a commercial software package;
