What
is a Frame Grabber?
A frame grabber is the interfacing card between the camera and the PC.
It is one of the key elements in an image processing system. It is use
to acquire video information and to transfer that information to the
succeeding stages of the system.
Frame grabbers convert video images from cameras into digital format
and transfer these digital images to PCs, which use the converted data
to make decisions about the object(s) being inspected. Though
performing these functions quickly and reliably are critically
important to the success of a machine vision inspection, frame grabber
is much more than mere data converters and transfer conduits. Frame
grabber offers a range of capabilities that can compensate for poor
lighting, optics and ways that camera sensors present information to
the frame grabber, increasing the quality of the images acquired and,
ultimately, helping the machine vision system perform more reliable
inspections.
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