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11. About Epiphan frame grabbing technology The VGA or DVI video source
Page 30 Epiphan Frame Grabber
The VGA or DVI video source
Image capture begins with a VESA-compatible VGA, DVI, or
dual-DVI video source. Virtually all personal computers as well
as almost any device that displays images includes a VESA-
compatible VGA or DVI video connection that you can connect an
Epiphan Frame Grabber to. To capture the video images from a
VGA or DVI source you connect the video source directly to a
suitable Epiphan Frame Grabber using a suitable cable.
Figure 4: Video source (VGA, DVI, or dual-DVI output)
Epiphan Frame Grabbers can capture video in a wide range of
video formats including analog and digital video formats,
resolutions from 640 x 480 to 2048 x 2048, frame rates up to 12 fps
at 2048 x 2048 resolution and up to 60 fps at 1024 x 768. For
information about all of the video source features that Epiphan
Frame Grabbers support, see the Frame Grabbers Comparison
Table on the Epiphan Web Site.
The Frame Grabber
The Frame Grabber that you select depends on the video format
produced by the video source. You can connect the basic
VGA2USB Frame Grabber to most VGA video sources and
successfully capture images.
For high resolution images or high frame rates, you should
upgrade to the VGA2USB LR, HR, or Pro, depending on your
detailed video format, frame rate, and resolution requirements
and budget. See the Frame Grabbers Comparison Table on the
Video Source
(Equipment with VGA, DVI, or
Dual-DVI output)