These visual systems have the ability to measure parts as well as verifying parts to check if they are in the right position or not, another purpose of the system is to be able to identify the shapes of the parts. They are also capable of sorting as well as measuring parts at incredibly high speeds.
With the help of computer software, one can process the images that have been captured whilst the process is carried out and one is trying to get the measure of for the capturing of the data. These systems are smart enough to be able to take decisions that will, later on, affect the function that one is trying to guess, this is done often times in a fail / pass capacity for triggering an operator to take action.