computer vision is concerned with the representation of physic structure of a three dimensional world by automatic analysis of images of that world. COmputer vision tries to give some visual imagery interpretation ability to machines.
machine vision is concerned with the engineering of integrated mechanical-optical-eletronic-software system for examining natural objects and materials, human and industrial artifacts and manufacturing processes. in order to detect defects and improve quality, operating efficiency and the safety of both products and processes.
it is also used to monitor and control machines used in manufacturing.