Classification and Response Generation

The last stage of a computer vision system generally produces some action in the external world. It may be to control the motors of an industrial robot. It may be to point out defective units on the conveyor belt of a quality control system. Or it may be to point out suspected cancerous regions in an X-ray image. Sometimes the input to the system is used to improve a robot’s knowledge and model of the world without any immediate external response being generated. Still, the conceptual purpose of a computer vision system is to produce responses, or at least to represent visual data in such a form that a correct decision is made.