True 3D measurement is made possible with stereo vision using at least two cameras from different viewing angles and/or an active illumination or laser triangulation. From the known distances and viewing angles of the cameras or with the help of applied marks, the system can generate a three-dimensional coordinate data set.
During the measurement process, the object is placed in front of the sensor, whcih records it step by step from all sides. Software then automatically transforms all individual measurements into a common coordinate system, resulting in a complete 3D pointcloud of the object's surface. The data obtained enables variance analysis (target/actual comparisons) of the object geometry or the checking of shape and position.