Analysis of brightness variations to certify the quality of each product
The camera transforms a three-dimensional (3D) real-world scene into a two-dimensional (2D) plane in which the third dimension is “flattened”.
Intelligent cameras or customised vision systems that work in two dimensions are appropriate when information about the third dimension is irrelevant to the required inspection.
In the field of industrial vision, 2D systems are the most widely used in all industrial sectors that employ artificial vision because they are the most economical and efficient choice for a wide range of industrial applications. In fact, the 2D solution is optimal in all cases where understanding the depth or complex geometry of an object is not required.
A particular example of 2D machine vision in the case of robot guides
In robot guides, the part must lie on a plane whose distance from the camera is known or measured with a device other than the vision system. A 2D ½ robotic system is used when the vision system operates on different planes that are known in advance.
For example, a pick-and-place robot for objects positioned on a series of shelves at different heights.