What are you looking for?

Introduction

In a laser-line triangulation system, a laser line (or any other “narrow light stripe” generation method) is projected on a 3D object. A camera, placed in another perspective than the laser, is then used to capture an image of that line, deformed by the shape of the object. The deformations of the line are a direct representation of the shape of the 3D object in the plane of the laser line. By scanning the object, that is making it move under the laser line and taking multiple images, you can reconstruct its 3D shape.

Figure 1 - Simplified laser triangulation system shows a simplified laser-based triangulation system.

Figure 1 - Simplified laser triangulation system