Three-dimensional laser cameras are classified into the following four categories according to their performance. These cameras are widely used for very accurate measurements in three dimensions. One of the most prominent manufacturers of these cameras is LMI3D and Cognex Inc.
1- Point-Profile Camera
This set of cameras is very useful for measuring the distance and dimensions in 3D image processing between two high-speed points.
2- Multi Point Profile Camera
These cameras are mainly used to measure the width or length of parts.
3- Line Profile Cameras
To measure the shape, the surface and volume of moving parts of this type of camera are used.
4- SnapShot Cameras
For a complete three-dimensional inspection of objects, a single scan of this type of camera is used.