Kesheng Wang
ABSTRACT
A Structured Light System (SLS) is a fast and flexible optical method for measuring the 3D shape of objects. The dense point cloud resulted accurately describes the shape information of the object. The information can be used in many applications, such as generating CAD models, measuring shapes and inspecting qualities. The desired geometrical information of positions, poses, distances, angles, profiles etc. can conveniently be extracted from the measurement result. It is also possible to calculate and visualize the deviation between a measurement and a CAD model. In this paper, we present techniques, which lead to development of practical 3D machine vision systems in a different way than traditional ones. We have developed low cost and user-friendly 3D machine vision systems with off-the-shelf components based on Structured Light Systems (also known as Fringe Projection Systems) suitable for automated quality inspection and shape measurement. Two cases are presented for demonstrating the successful implementation.
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Index Terms
- Accurate 3D object measurement and inspection using structured light systems
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