Machine vision systems are used for automated inspection and measurement in production environments.  They are an integrated camera, image capture, processing, storage, analysis and control system for automated inspection and measurement in production environments. Common configurations for machine vision systems include embedded or vision engine, modular or PC based, and turnkey or complete system.  Embedded systems or vision engines are typically applied where a high-end system is required with one to several processors in a VME, CompactPCI or other form factors.  Modular or PC based machine vision systems have integration of complete, highly flexible vision systems from a selection of compatible modules such as cameras/imagers, lenses, computers/processors, frame grabber boards, image processing boards, image analysis software or illuminators.  With modular systems, the engineer or system integrator selects or configures the components to produce a product tailored to meet the application's requirements.  Turnkey systems are complete, off-the-shelve (COTS) vision systems with all of the required components to provide an application ready product.  The unit does not require additional hardware such as a computer or cameras. The turnkey systems are complete with all of the required components to provide an application ready product.