The purpose of this paper is to review the technology and applications of 3D visual measurement systems.
A particular line profile sensor is used to explain the principle of laser triangulation, and further profilers are described. A grid projection technique is presented. Finally, a series of industrial 3D vision devices from SICK are described.
3D vision is becoming as convenient as 2D as a factory integration tool. Very high‐speed laser‐scan systems are now available, making up to 35,000 profiles per second. Grid projection systems can measure to 10 μm resolution.
The value of this paper is to make scientists and engineers aware of advances in the practicality of 3D vision systems.
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