Definition: digital video

(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