What is machine vision and what kinds of things does it do?
Machine vision systems acquire an image of an object and process that image by computer. The computer compares specific features of the image with predetermined inspection criteria and then takes the appropriate action. Machine vision systems consist of an image sensor such as a camera, an illumination source and a ‘vision engine.’ The application of the technology involves control: quality control, process control, machine control or robot control. Machine vision technology is available in 2-dimensional and 3-dimensional systems for both on-line and off-line installations. Color machine vision systems also are available. Opportunities for machine vision can be found throughout a manufacturing facility, including receiving, forming operations, testing, packaging operations, warehousing, etc. Applications of vision systems include: inspection (2D and 3D metrology, surface flaw analysis, mechanical/electronic assembly verification), location analysis (visual servoing 2D and 3D, robot gui
