(1) See
DV.
(2) Video recording in digital form. In order to edit video in the computer or to embed video clips into multimedia documents, a video source must originate from a digital camera or be converted to digital. Frames from analog video cameras and VCRs are converted into digital frames (bitmaps) using frame grabbers or similar devices attached to a computer.
Uncompressed digital video signals require huge amounts of storage, and high-ratio real-time compression schemes, such as MPEG, are essential for handling digital video in today's computers. See
D1,
MPEG,
DVD,
digital nonlinear editing and
DTV.
DIGITAL AND ANALOG INTERFACES
Digital Analog
Video Video
DVI composite video
HDMI component video
SDI
Digital Analog
Audio Audio
S/PDIF analog audio
TOSLINK